131237320146 has 16 divisors (see below), whose sum is σ = 262488633600. Its totient is φ = 43743441168.

The previous prime is 131237320141. The next prime is 131237320147. The reversal of 131237320146 is 641023732131.

It is a happy number.

It is a super-2 number, since 2×131237320146² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131237320141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 459106 + ... + 687933.

It is an arithmetic number, because the mean of its divisors is an integer number (16405539600).

Almost surely, 2^131237320146 is an apocalyptic number.

131237320146 is an abundant number, since it is smaller than the sum of its proper divisors (131251313454).

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

131237320146 is a wasteful number, since it uses less digits than its factorization.

131237320146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166113.

The product of its (nonzero) digits is 18144, while the sum is 33.

The spelling of 131237320146 in words is "one hundred thirty-one billion, two hundred thirty-seven million, three hundred twenty thousand, one hundred forty-six".