1238190139725 has 144 divisors (see below), whose sum is σ = 2598838235136. Its totient is φ = 514378032000.

The previous prime is 1238190139721. The next prime is 1238190139757. The reversal of 1238190139725 is 5279310918321.

It is a happy number.

It is not a de Polignac number, because 1238190139725 - 2² = 1238190139721 is a prime.

It is a super-2 number, since 2×1238190139725² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1238190139721) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 165374932 + ... + 165382418.

It is an arithmetic number, because the mean of its divisors is an integer number (18047487744).

Almost surely, 2^{1238190139725} is an apocalyptic number.

1238190139725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1238190139725 is an abundant number, since it is smaller than the sum of its proper divisors (1360648095411).

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

1238190139725 is a wasteful number, since it uses less digits than its factorization.

1238190139725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11616 (or 11604 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 51.

The spelling of 1238190139725 in words is "one trillion, two hundred thirty-eight billion, one hundred ninety million, one hundred thirty-nine thousand, seven hundred twenty-five".