131830901 has 4 divisors (see below), whose sum is σ = 132455904. Its totient is φ = 131205900.

The previous prime is 131830891. The next prime is 131830913. The reversal of 131830901 is 109038131.

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, and also an emirpimes, since its reverse is a distinct semiprime: 109038131 = 19 ⋅5738849.

It is a cyclic number.

It is not a de Polignac number, because 131830901 - 2¹⁸ = 131568757 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 (131830921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312185 + ... + 312606.

It is an arithmetic number, because the mean of its divisors is an integer number (33113976).

Almost surely, 2^131830901 is an apocalyptic number.

It is an amenable number.

131830901 is a deficient number, since it is larger than the sum of its proper divisors (625003).

131830901 is an equidigital number, since it uses as much as digits as its factorization.

131830901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625002.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 131830901 is about 11481.7638453332. The cubic root of 131830901 is about 508.9468218844.

The spelling of 131830901 in words is "one hundred thirty-one million, eight hundred thirty thousand, nine hundred one".