131654651 has 4 divisors (see below), whose sum is σ = 131886600. Its totient is φ = 131422704.

The previous prime is 131654641. The next prime is 131654687. The reversal of 131654651 is 156456131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131654651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131654641) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 115121 + ... + 116258.

It is an arithmetic number, because the mean of its divisors is an integer number (32971650).

Almost surely, 2^131654651 is an apocalyptic number.

131654651 is a deficient number, since it is larger than the sum of its proper divisors (231949).

131654651 is an equidigital number, since it uses as much as digits as its factorization.

131654651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231948.

The product of its digits is 10800, while the sum is 32.

The square root of 131654651 is about 11474.0860638223. The cubic root of 131654651 is about 508.7199102835.

The spelling of 131654651 in words is "one hundred thirty-one million, six hundred fifty-four thousand, six hundred fifty-one".