131525045 has 4 divisors (see below), whose sum is σ = 157830060. Its totient is φ = 105220032.

The previous prime is 131525041. The next prime is 131525071. The reversal of 131525045 is 540525131.

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 58951684 + 72573361 = 7678^2 + 8519^2 .

It is a cyclic number.

It is not a de Polignac number, because 131525045 - 2² = 131525041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131525041) 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, 13152500 + ... + 13152509.

It is an arithmetic number, because the mean of its divisors is an integer number (39457515).

Almost surely, 2^131525045 is an apocalyptic number.

It is an amenable number.

131525045 is a deficient number, since it is larger than the sum of its proper divisors (26305015).

131525045 is an equidigital number, since it uses as much as digits as its factorization.

131525045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26305014.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 131525045 is about 11468.4369030832. The cubic root of 131525045 is about 508.5529208664.

The spelling of 131525045 in words is "one hundred thirty-one million, five hundred twenty-five thousand, forty-five".