131401415 has 16 divisors (see below), whose sum is σ = 174218688. Its totient is φ = 94634496.

The previous prime is 131401409. The next prime is 131401429. The reversal of 131401415 is 514104131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 131401415 - 2⁴ = 131401399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31652 + ... + 35561.

It is an arithmetic number, because the mean of its divisors is an integer number (10888668).

Almost surely, 2^131401415 is an apocalyptic number.

131401415 is a deficient number, since it is larger than the sum of its proper divisors (42817273).

131401415 is a wasteful number, since it uses less digits than its factorization.

131401415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67258.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 131401415 is about 11463.0456249637. The cubic root of 131401415 is about 508.3935288983.

Adding to 131401415 its reverse (514104131), we get a palindrome (645505546).

The spelling of 131401415 in words is "one hundred thirty-one million, four hundred one thousand, four hundred fifteen".