131408138284 has 12 divisors (see below), whose sum is σ = 231168244608. Its totient is φ = 65360068400.

The previous prime is 131408138249. The next prime is 131408138287. The reversal of 131408138284 is 482831804131.

It is a self number, because there is not a number n which added to its sum of digits gives 131408138284.

It is not an unprimeable number, because it can be changed into a prime (131408138287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85999327 + ... + 86000854.

It is an arithmetic number, because the mean of its divisors is an integer number (19264020384).

Almost surely, 2^131408138284 is an apocalyptic number.

It is an amenable number.

131408138284 is a deficient number, since it is larger than the sum of its proper divisors (99760106324).

131408138284 is a wasteful number, since it uses less digits than its factorization.

131408138284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172000376 (or 172000374 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 43.

The spelling of 131408138284 in words is "one hundred thirty-one billion, four hundred eight million, one hundred thirty-eight thousand, two hundred eighty-four".