131335057 has 4 divisors (see below), whose sum is σ = 150097216. Its totient is φ = 112572900.

The previous prime is 131335027. The next prime is 131335067. The reversal of 131335057 is 750533131.

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: 750533131 = 941 ⋅797591.

It is a cyclic number.

It is not a de Polignac number, because 131335057 - 2¹⁵ = 131302289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131335027) 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, 9381069 + ... + 9381082.

It is an arithmetic number, because the mean of its divisors is an integer number (37524304).

Almost surely, 2^131335057 is an apocalyptic number.

It is an amenable number.

131335057 is a deficient number, since it is larger than the sum of its proper divisors (18762159).

131335057 is an equidigital number, since it uses as much as digits as its factorization.

131335057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18762158.

The product of its (nonzero) digits is 4725, while the sum is 28.

The square root of 131335057 is about 11460.1508279778. The cubic root of 131335057 is about 508.3079345427.

Adding to 131335057 its reverse (750533131), we get a palindrome (881868188).

The spelling of 131335057 in words is "one hundred thirty-one million, three hundred thirty-five thousand, fifty-seven".