131554201 has 4 divisors (see below), whose sum is σ = 131635252. Its totient is φ = 131473152.

The previous prime is 131554183. The next prime is 131554207. The reversal of 131554201 is 102455131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 63920025 + 67634176 = 7995^2 + 8224^2 .

It is a cyclic number.

It is not a de Polignac number, because 131554201 - 2⁹ = 131553689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131554207) 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, 38040 + ... + 41353.

It is an arithmetic number, because the mean of its divisors is an integer number (32908813).

Almost surely, 2^131554201 is an apocalyptic number.

It is an amenable number.

131554201 is a deficient number, since it is larger than the sum of its proper divisors (81051).

131554201 is an equidigital number, since it uses as much as digits as its factorization.

131554201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81050.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 131554201 is about 11469.7079736147. The cubic root of 131554201 is about 508.5904961522.

The spelling of 131554201 in words is "one hundred thirty-one million, five hundred fifty-four thousand, two hundred one".