131889415 has 16 divisors (see below), whose sum is σ = 185290560. Its totient is φ = 88231680.

The previous prime is 131889413. The next prime is 131889427. The reversal of 131889415 is 514988131.

It is a happy number.

It is not a de Polignac number, because 131889415 - 2¹ = 131889413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131889413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44520 + ... + 47389.

It is an arithmetic number, because the mean of its divisors is an integer number (11580660).

Almost surely, 2^131889415 is an apocalyptic number.

131889415 is a deficient number, since it is larger than the sum of its proper divisors (53401145).

131889415 is an equidigital number, since it uses as much as digits as its factorization.

131889415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91962.

The product of its digits is 34560, while the sum is 40.

The square root of 131889415 is about 11484.3116903017. The cubic root of 131889415 is about 509.0221105285.

The spelling of 131889415 in words is "one hundred thirty-one million, eight hundred eighty-nine thousand, four hundred fifteen".