125287893 has 6 divisors (see below), whose sum is σ = 180971414. Its totient is φ = 83525256.

The previous prime is 125287889. The next prime is 125287901. The reversal of 125287893 is 398782521.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 65658609 + 59629284 = 8103^2 + 7722^2 .

It is not a de Polignac number, because 125287893 - 2² = 125287889 is a prime.

It is a super-2 number, since 2×125287893² = 31394112264758898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125287193) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6960430 + ... + 6960447.

Almost surely, 2^125287893 is an apocalyptic number.

It is an amenable number.

125287893 is a deficient number, since it is larger than the sum of its proper divisors (55683521).

125287893 is a wasteful number, since it uses less digits than its factorization.

125287893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13920883 (or 13920880 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 125287893 is about 11193.2074491631. The cubic root of 125287893 is about 500.3835630169.

The spelling of 125287893 in words is "one hundred twenty-five million, two hundred eighty-seven thousand, eight hundred ninety-three".