158787131725 has 12 divisors (see below), whose sum is σ = 199669229280. Its totient is φ = 125240553200.

The previous prime is 158787131681. The next prime is 158787131729. The reversal of 158787131725 is 527131787851.

It is not a de Polignac number, because 158787131725 - 2⁷ = 158787131597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158787131729) 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, 44726995 + ... + 44730544.

It is an arithmetic number, because the mean of its divisors is an integer number (16639102440).

Almost surely, 2^158787131725 is an apocalyptic number.

It is an amenable number.

158787131725 is a deficient number, since it is larger than the sum of its proper divisors (40882097555).

158787131725 is an equidigital number, since it uses as much as digits as its factorization.

158787131725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89457620 (or 89457615 counting only the distinct ones).

The product of its digits is 3292800, while the sum is 55.

The spelling of 158787131725 in words is "one hundred fifty-eight billion, seven hundred eighty-seven million, one hundred thirty-one thousand, seven hundred twenty-five".