153923231617 has 12 divisors (see below), whose sum is σ = 158228209020. Its totient is φ = 149732421696.

The previous prime is 153923231549. The next prime is 153923231629. The reversal of 153923231617 is 716132329351.

It can be written as a sum of positive squares in 6 ways, for example, as 8368773361 + 145554458256 = 91481^2 + 381516^2 .

It is not a de Polignac number, because 153923231617 - 2⁷ = 153923231489 is a prime.

It is a super-2 number, since 2×153923231617² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (153923231017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9570859 + ... + 9586927.

It is an arithmetic number, because the mean of its divisors is an integer number (13185684085).

Almost surely, 2^153923231617 is an apocalyptic number.

It is an amenable number.

153923231617 is a deficient number, since it is larger than the sum of its proper divisors (4304977403).

153923231617 is an equidigital number, since it uses as much as digits as its factorization.

153923231617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23140 (or 23103 counting only the distinct ones).

The product of its digits is 204120, while the sum is 43.

The spelling of 153923231617 in words is "one hundred fifty-three billion, nine hundred twenty-three million, two hundred thirty-one thousand, six hundred seventeen".