131362445 has 4 divisors (see below), whose sum is σ = 157634940. Its totient is φ = 105089952.

The previous prime is 131362391. The next prime is 131362457. The reversal of 131362445 is 544263131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 544263131 = 9293 ⋅58567.

It can be written as a sum of positive squares in 2 ways, for example, as 90364036 + 40998409 = 9506^2 + 6403^2 .

It is a cyclic number.

It is not a de Polignac number, because 131362445 - 2⁶ = 131362381 is a prime.

It is a congruent number.

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, 13136240 + ... + 13136249.

It is an arithmetic number, because the mean of its divisors is an integer number (39408735).

Almost surely, 2^131362445 is an apocalyptic number.

It is an amenable number.

131362445 is a deficient number, since it is larger than the sum of its proper divisors (26272495).

131362445 is an equidigital number, since it uses as much as digits as its factorization.

131362445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26272494.

The product of its digits is 8640, while the sum is 29.

The square root of 131362445 is about 11461.3456888796. The cubic root of 131362445 is about 508.3432654753.

The spelling of 131362445 in words is "one hundred thirty-one million, three hundred sixty-two thousand, four hundred forty-five".