131045653 has 4 divisors (see below), whose sum is σ = 131519020. Its totient is φ = 130572288.

The previous prime is 131045633. The next prime is 131045657. The reversal of 131045653 is 356540131.

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 34082244 + 96963409 = 5838^2 + 9847^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131045653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131045657) 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, 236268 + ... + 236821.

It is an arithmetic number, because the mean of its divisors is an integer number (32879755).

Almost surely, 2^131045653 is an apocalyptic number.

It is an amenable number.

131045653 is a deficient number, since it is larger than the sum of its proper divisors (473367).

131045653 is an equidigital number, since it uses as much as digits as its factorization.

131045653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473366.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 131045653 is about 11447.5173290980. The cubic root of 131045653 is about 507.9342984966.

Adding to 131045653 its reverse (356540131), we get a palindrome (487585784).

The spelling of 131045653 in words is "one hundred thirty-one million, forty-five thousand, six hundred fifty-three".