653423137 has 8 divisors (see below), whose sum is σ = 667585800. Its totient is φ = 639412224.

The previous prime is 653423119. The next prime is 653423143. The reversal of 653423137 is 731324356.

It can be written as a sum of positive squares in 4 ways, for example, as 187251856 + 466171281 = 13684^2 + 21591^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-653423137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (653424137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29212 + ... + 46477.

It is an arithmetic number, because the mean of its divisors is an integer number (83448225).

Almost surely, 2^653423137 is an apocalyptic number.

It is an amenable number.

653423137 is a deficient number, since it is larger than the sum of its proper divisors (14162663).

653423137 is an equidigital number, since it uses as much as digits as its factorization.

653423137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75875.

The product of its digits is 45360, while the sum is 34.

The square root of 653423137 is about 25562.1426527590. The cubic root of 653423137 is about 867.7570873600.

The spelling of 653423137 in words is "six hundred fifty-three million, four hundred twenty-three thousand, one hundred thirty-seven".