654123137 has 4 divisors (see below), whose sum is σ = 654219696. Its totient is φ = 654026580.

The previous prime is 654123133. The next prime is 654123139. The reversal of 654123137 is 731321456.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 654123137 - 2² = 654123133 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (654123131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37283 + ... + 51944.

It is an arithmetic number, because the mean of its divisors is an integer number (163554924).

Almost surely, 2^654123137 is an apocalyptic number.

It is an amenable number.

654123137 is a deficient number, since it is larger than the sum of its proper divisors (96559).

654123137 is an equidigital number, since it uses as much as digits as its factorization.

654123137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96558.

The product of its digits is 15120, while the sum is 32.

The square root of 654123137 is about 25575.8311106404. The cubic root of 654123137 is about 868.0668474252.

The spelling of 654123137 in words is "six hundred fifty-four million, one hundred twenty-three thousand, one hundred thirty-seven".