125297028 has 36 divisors (see below), whose sum is σ = 319807488. Its totient is φ = 41358960.

The previous prime is 125297027. The next prime is 125297047. The reversal of 125297028 is 820792521.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×125297028³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 125296983 and 125297001.

It is not an unprimeable number, because it can be changed into a prime (125297027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13188 + ... + 20603.

Almost surely, 2^125297028 is an apocalyptic number.

125297028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

125297028 is an abundant number, since it is smaller than the sum of its proper divisors (194510460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125297028 is a wasteful number, since it uses less digits than its factorization.

125297028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33904 (or 33899 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 125297028 is about 11193.6155017045. The cubic root of 125297028 is about 500.3957240557.

The spelling of 125297028 in words is "one hundred twenty-five million, two hundred ninety-seven thousand, twenty-eight".