131156467 has 4 divisors (see below), whose sum is σ = 141245440. Its totient is φ = 121067496.

The previous prime is 131156447. The next prime is 131156471. The reversal of 131156467 is 764651131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 764651131 = 47 ⋅16269173.

It is a cyclic number.

It is not a de Polignac number, because 131156467 - 2⁷ = 131156339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131156437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5044467 + ... + 5044492.

It is an arithmetic number, because the mean of its divisors is an integer number (35311360).

Almost surely, 2^131156467 is an apocalyptic number.

131156467 is a deficient number, since it is larger than the sum of its proper divisors (10088973).

131156467 is a wasteful number, since it uses less digits than its factorization.

131156467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10088972.

The product of its digits is 15120, while the sum is 34.

The square root of 131156467 is about 11452.3563950831. The cubic root of 131156467 is about 508.0774302272.

The spelling of 131156467 in words is "one hundred thirty-one million, one hundred fifty-six thousand, four hundred sixty-seven".