1373125 has 20 divisors (see below), whose sum is σ = 1858780. Its totient is φ = 1014000.

The previous prime is 1373087. The next prime is 1373129. The reversal of 1373125 is 5213731.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

1373125 is nontrivially palindromic in base 4.

It can be written as a sum of positive squares in 10 ways, for example, as 1083681 + 289444 = 1041^2 + 538^2 .

It is not a de Polignac number, because 1373125 - 2¹⁵ = 1340357 is a prime.

Its product of digits (630) is a multiple of the sum of its prime divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 1373096 and 1373105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1373129) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 105619 + ... + 105631.

It is an arithmetic number, because the mean of its divisors is an integer number (92939).

2^1373125 is an apocalyptic number.

It is an amenable number.

1373125 is a deficient number, since it is larger than the sum of its proper divisors (485655).

1373125 is an frugal number, since it uses more digits than its factorization.

1373125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59 (or 18 counting only the distinct ones).

The product of its digits is 630, while the sum is 22.

The square root of 1373125 is about 1171.8041645258. The cubic root of 1373125 is about 111.1484365340.

Adding to 1373125 its reverse (5213731), we get a palindrome (6586856).

Subtracting 1373125 from its reverse (5213731), we obtain a triangular number (3840606 = T₂₇₇₁).

It can be divided in two parts, 13 and 73125, that multiplied together give a square (950625 = 975²).

The spelling of 1373125 in words is "one million, three hundred seventy-three thousand, one hundred twenty-five".