131285361464 has 32 divisors (see below), whose sum is σ = 248673348000. Its totient is φ = 64972867200.

The previous prime is 131285361433. The next prime is 131285361527. The reversal of 131285361464 is 464163582131.

It is a super-2 number, since 2×131285361464² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2818637 + ... + 2864835.

It is an arithmetic number, because the mean of its divisors is an integer number (7771042125).

Almost surely, 2^131285361464 is an apocalyptic number.

It is an amenable number.

131285361464 is a deficient number, since it is larger than the sum of its proper divisors (117387986536).

131285361464 is a wasteful number, since it uses less digits than its factorization.

131285361464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49823 (or 49819 counting only the distinct ones).

The product of its digits is 414720, while the sum is 44.

The spelling of 131285361464 in words is "one hundred thirty-one billion, two hundred eighty-five million, three hundred sixty-one thousand, four hundred sixty-four".