1375125 has 32 divisors (see below), whose sum is σ = 2421120. Its totient is φ = 691200.

The previous prime is 1375117. The next prime is 1375133. The reversal of 1375125 is 5215731.

It is an interprime number because it is at equal distance from previous prime (1375117) and next prime (1375133).

It is not a de Polignac number, because 1375125 - 2³ = 1375117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1375095 and 1375104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7029 + ... + 7221.

It is an arithmetic number, because the mean of its divisors is an integer number (75660).

2^1375125 is an apocalyptic number.

1375125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1375125 is a deficient number, since it is larger than the sum of its proper divisors (1045995).

1375125 is a wasteful number, since it uses less digits than its factorization.

1375125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 220 counting only the distinct ones).

The product of its digits is 1050, while the sum is 24.

The square root of 1375125 is about 1172.6572389236. The cubic root of 1375125 is about 111.2023740932.

Subtracting 1375125 from its reverse (5215731), we obtain a triangular number (3840606 = T₂₇₇₁).

The spelling of 1375125 in words is "one million, three hundred seventy-five thousand, one hundred twenty-five".