131038745 has 4 divisors (see below), whose sum is σ = 157246500. Its totient is φ = 104830992.

The previous prime is 131038729. The next prime is 131038753. The reversal of 131038745 is 547830131.

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 20620681 + 110418064 = 4541^2 + 10508^2 .

It is a cyclic number.

It is not a de Polignac number, because 131038745 - 2⁴ = 131038729 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13103870 + ... + 13103879.

It is an arithmetic number, because the mean of its divisors is an integer number (39311625).

Almost surely, 2^131038745 is an apocalyptic number.

It is an amenable number.

131038745 is a deficient number, since it is larger than the sum of its proper divisors (26207755).

131038745 is an equidigital number, since it uses as much as digits as its factorization.

131038745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26207754.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 131038745 is about 11447.2156003108. The cubic root of 131038745 is about 507.9253731801.

Adding to 131038745 its reverse (547830131), we get a palindrome (678868876).

The spelling of 131038745 in words is "one hundred thirty-one million, thirty-eight thousand, seven hundred forty-five".