131556226774 has 32 divisors (see below), whose sum is σ = 230183306496. Its totient is φ = 55220387040.

The previous prime is 131556226729. The next prime is 131556226783. The reversal of 131556226774 is 477622655131.

It is a super-2 number, since 2×131556226774² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 268429 + ... + 578935.

It is an arithmetic number, because the mean of its divisors is an integer number (7193228328).

Almost surely, 2^131556226774 is an apocalyptic number.

131556226774 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

131556226774 is a deficient number, since it is larger than the sum of its proper divisors (98627079722).

131556226774 is a wasteful number, since it uses less digits than its factorization.

131556226774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311140.

The product of its digits is 2116800, while the sum is 49.

The spelling of 131556226774 in words is "one hundred thirty-one billion, five hundred fifty-six million, two hundred twenty-six thousand, seven hundred seventy-four".