131354345 has 4 divisors (see below), whose sum is σ = 157625220. Its totient is φ = 105083472.

The previous prime is 131354341. The next prime is 131354401. The reversal of 131354345 is 543453131.

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 57032704 + 74321641 = 7552^2 + 8621^2 .

It is a cyclic number.

It is not a de Polignac number, because 131354345 - 2² = 131354341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131354341) 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, 13135430 + ... + 13135439.

It is an arithmetic number, because the mean of its divisors is an integer number (39406305).

Almost surely, 2^131354345 is an apocalyptic number.

It is an amenable number.

131354345 is a deficient number, since it is larger than the sum of its proper divisors (26270875).

131354345 is an equidigital number, since it uses as much as digits as its factorization.

131354345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26270874.

The product of its digits is 10800, while the sum is 29.

The square root of 131354345 is about 11460.9923217844. The cubic root of 131354345 is about 508.3328168647.

The spelling of 131354345 in words is "one hundred thirty-one million, three hundred fifty-four thousand, three hundred forty-five".