131555413 has 8 divisors (see below), whose sum is σ = 148144896. Its totient is φ = 115737600.

The previous prime is 131555383. The next prime is 131555443. The reversal of 131555413 is 314555131.

It is an interprime number because it is at equal distance from previous prime (131555383) and next prime (131555443).

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

It is not a de Polignac number, because 131555413 - 2¹⁷ = 131424341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131555443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192556 + ... + 193237.

It is an arithmetic number, because the mean of its divisors is an integer number (18518112).

Almost surely, 2^131555413 is an apocalyptic number.

It is an amenable number.

131555413 is a deficient number, since it is larger than the sum of its proper divisors (16589483).

131555413 is a wasteful number, since it uses less digits than its factorization.

131555413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385835.

The product of its digits is 4500, while the sum is 28.

The square root of 131555413 is about 11469.7608083168. The cubic root of 131555413 is about 508.5920580174.

The spelling of 131555413 in words is "one hundred thirty-one million, five hundred fifty-five thousand, four hundred thirteen".