125312535 has 32 divisors (see below), whose sum is σ = 227969280. Its totient is φ = 65276064.

The previous prime is 125312521. The next prime is 125312549. The reversal of 125312535 is 535213521.

It is a happy number.

125312535 is a `hidden beast` number, since 125 + 3 + 1 + 2 + 535 = 666.

It is an interprime number because it is at equal distance from previous prime (125312521) and next prime (125312549).

It is not a de Polignac number, because 125312535 - 2¹⁶ = 125246999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 125312499 and 125312508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4989 + ... + 16598.

It is an arithmetic number, because the mean of its divisors is an integer number (7124040).

Almost surely, 2^125312535 is an apocalyptic number.

125312535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

125312535 is a deficient number, since it is larger than the sum of its proper divisors (102656745).

125312535 is a wasteful number, since it uses less digits than its factorization.

125312535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21644 (or 21638 counting only the distinct ones).

The product of its digits is 4500, while the sum is 27.

The square root of 125312535 is about 11194.3081519136. The cubic root of 125312535 is about 500.4163665149.

The spelling of 125312535 in words is "one hundred twenty-five million, three hundred twelve thousand, five hundred thirty-five".