131155451 has 16 divisors (see below), whose sum is σ = 155301888. Its totient is φ = 108388800.

The previous prime is 131155447. The next prime is 131155457. The reversal of 131155451 is 154551131.

It is a cyclic number.

It is not a de Polignac number, because 131155451 - 2² = 131155447 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131155451.

It is not an unprimeable number, because it can be changed into a prime (131155457) 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, 66956 + ... + 68886.

It is an arithmetic number, because the mean of its divisors is an integer number (9706368).

Almost surely, 2^131155451 is an apocalyptic number.

131155451 is a deficient number, since it is larger than the sum of its proper divisors (24146437).

131155451 is a wasteful number, since it uses less digits than its factorization.

131155451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2282.

The product of its digits is 1500, while the sum is 26.

The square root of 131155451 is about 11452.3120373137. The cubic root of 131155451 is about 508.0761182879.

The spelling of 131155451 in words is "one hundred thirty-one million, one hundred fifty-five thousand, four hundred fifty-one".