131403400534556 has 6 divisors (see below), whose sum is σ = 229955950935480. Its totient is φ = 65701700267276.

The previous prime is 131403400534531. The next prime is 131403400534561. The reversal of 131403400534556 is 655435004304131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16425425066816 + ... + 16425425066823.

It is an arithmetic number, because the mean of its divisors is an integer number (38325991822580).

Almost surely, 2^{131403400534556} is an apocalyptic number.

It is an amenable number.

131403400534556 is a deficient number, since it is larger than the sum of its proper divisors (98552550400924).

131403400534556 is a wasteful number, since it uses less digits than its factorization.

131403400534556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32850850133643 (or 32850850133641 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 44.

Adding to 131403400534556 its reverse (655435004304131), we get a palindrome (786838404838687).

The spelling of 131403400534556 in words is "one hundred thirty-one trillion, four hundred three billion, four hundred million, five hundred thirty-four thousand, five hundred fifty-six".