125026242136 has 8 divisors (see below), whose sum is σ = 234424204020. Its totient is φ = 62513121064.

The previous prime is 125026242097. The next prime is 125026242157. The reversal of 125026242136 is 631242620521.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×125026242136² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7814140126 + ... + 7814140141.

Almost surely, 2^125026242136 is an apocalyptic number.

It is an amenable number.

125026242136 is a deficient number, since it is larger than the sum of its proper divisors (109397961884).

125026242136 is a wasteful number, since it uses less digits than its factorization.

125026242136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15628280273 (or 15628280269 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

Adding to 125026242136 its reverse (631242620521), we get a palindrome (756268862657).

The spelling of 125026242136 in words is "one hundred twenty-five billion, twenty-six million, two hundred forty-two thousand, one hundred thirty-six".