131154634 has 8 divisors (see below), whose sum is σ = 211865220. Its totient is φ = 60532896.

The previous prime is 131154631. The next prime is 131154649. The reversal of 131154634 is 436451131.

It can be written as a sum of positive squares in 2 ways, for example, as 119574225 + 11580409 = 10935^2 + 3403^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (131154631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2522179 + ... + 2522230.

Almost surely, 2^131154634 is an apocalyptic number.

131154634 is a deficient number, since it is larger than the sum of its proper divisors (80710586).

131154634 is a wasteful number, since it uses less digits than its factorization.

131154634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5044424.

The product of its digits is 4320, while the sum is 28.

The square root of 131154634 is about 11452.2763676048. The cubic root of 131154634 is about 508.0750633081.

It can be divided in two parts, 1311 and 54634, that added together give a triangular number (55945 = T₃₃₄).

The spelling of 131154634 in words is "one hundred thirty-one million, one hundred fifty-four thousand, six hundred thirty-four".