953561131 has 2 divisors, whose sum is σ = 953561132. Its totient is φ = 953561130.

The previous prime is 953561129. The next prime is 953561137. The reversal of 953561131 is 131165359.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 953561131 - 2¹ = 953561129 is a prime.

It is a super-2 number, since 2×953561131² = 1818557661107998322, which contains 22 as substring.

Together with 953561129, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (953561137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 476780565 + 476780566.

It is an arithmetic number, because the mean of its divisors is an integer number (476780566).

Almost surely, 2^953561131 is an apocalyptic number.

953561131 is a deficient number, since it is larger than the sum of its proper divisors (1).

953561131 is an equidigital number, since it uses as much as digits as its factorization.

953561131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12150, while the sum is 34.

The square root of 953561131 is about 30879.7851514547. The cubic root of 953561131 is about 984.2743781062.

The spelling of 953561131 in words is "nine hundred fifty-three million, five hundred sixty-one thousand, one hundred thirty-one".