131158393392 has 90 divisors (see below), whose sum is σ = 366985530396. Its totient is φ = 40346392320.

The previous prime is 131158393363. The next prime is 131158393393. The reversal of 131158393392 is 293393851131.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (131158393393) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 32616342 + ... + 32620362.

Almost surely, 2^131158393392 is an apocalyptic number.

131158393392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131158393392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183492765198).

131158393392 is an abundant number, since it is smaller than the sum of its proper divisors (235827137004).

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

131158393392 is an frugal number, since it uses more digits than its factorization.

131158393392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8079 (or 4039 counting only the distinct ones).

The product of its digits is 524880, while the sum is 48.

Multiplying 131158393392 by its sum of digits (48), we get a square (6295602882816 = 2509104²).

131158393392 divided by its sum of digits (48) gives a square (2732466529 = 52273²).

The spelling of 131158393392 in words is "one hundred thirty-one billion, one hundred fifty-eight million, three hundred ninety-three thousand, three hundred ninety-two".