1253125 has 12 divisors (see below), whose sum is σ = 1570212. Its totient is φ = 1000000.

The previous prime is 1253111. The next prime is 1253137. The reversal of 1253125 is 5213521.

It can be written as a sum of positive squares in 6 ways, for example, as 641601 + 611524 = 801^2 + 782^2 .

It is not a de Polignac number, because 1253125 - 2⁵ = 1253093 is a prime.

It is a super-3 number, since 3×1253125³ = 5903430267333984375, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2925 + ... + 3325.

It is an arithmetic number, because the mean of its divisors is an integer number (130851).

2^1253125 is an apocalyptic number.

It is an amenable number.

1253125 is a deficient number, since it is larger than the sum of its proper divisors (317087).

1253125 is an frugal number, since it uses more digits than its factorization.

1253125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426 (or 406 counting only the distinct ones).

The product of its digits is 300, while the sum is 19.

The square root of 1253125 is about 1119.4306588619. The cubic root of 1253125 is about 107.8114279106.

Adding to 1253125 its reverse (5213521), we get a palindrome (6466646).

It can be divided in two parts, 1253 and 125, that added together give a triangular number (1378 = T₅₂).

The spelling of 1253125 in words is "one million, two hundred fifty-three thousand, one hundred twenty-five".