131155934 has 32 divisors (see below), whose sum is σ = 247779840. Its totient is φ = 50676192.

The previous prime is 131155903. The next prime is 131155939. The reversal of 131155934 is 439551131.

It is a self number, because there is not a number n which added to its sum of digits gives 131155934.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131155939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 554 + ... + 16205.

It is an arithmetic number, because the mean of its divisors is an integer number (7743120).

Almost surely, 2^131155934 is an apocalyptic number.

131155934 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

131155934 is a deficient number, since it is larger than the sum of its proper divisors (116623906).

131155934 is a wasteful number, since it uses less digits than its factorization.

131155934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16824.

The product of its digits is 8100, while the sum is 32.

The square root of 131155934 is about 11452.3331247393. Note that the first 3 decimals coincide. The cubic root of 131155934 is about 508.0767419764.

The spelling of 131155934 in words is "one hundred thirty-one million, one hundred fifty-five thousand, nine hundred thirty-four".