131480381 has 4 divisors (see below), whose sum is σ = 132351264. Its totient is φ = 130609500.

The previous prime is 131480357. The next prime is 131480417. The reversal of 131480381 is 183084131.

131480381 = T₁₈ + T₁₉ + ... + T₉₂₃.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131480381 is a prime.

It is a super-2 number, since 2×131480381² = 34574181175810322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131480311) 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, 435215 + ... + 435516.

It is an arithmetic number, because the mean of its divisors is an integer number (33087816).

Almost surely, 2^131480381 is an apocalyptic number.

It is an amenable number.

131480381 is a deficient number, since it is larger than the sum of its proper divisors (870883).

131480381 is an equidigital number, since it uses as much as digits as its factorization.

131480381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870882.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 131480381 is about 11466.4894802202. The cubic root of 131480381 is about 508.4953486140.

The spelling of 131480381 in words is "one hundred thirty-one million, four hundred eighty thousand, three hundred eighty-one".