153493919531 has 4 divisors (see below), whose sum is σ = 153494746752. Its totient is φ = 153493092312.

The previous prime is 153493919519. The next prime is 153493919549. The reversal of 153493919531 is 135919394351.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 135919394351 = 13 ⋅10455338027.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-153493919531 is a prime.

It is a super-2 number, since 2×153493919531² (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 (153493919231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7925 + ... + 554121.

It is an arithmetic number, because the mean of its divisors is an integer number (38373686688).

Almost surely, 2^153493919531 is an apocalyptic number.

153493919531 is a deficient number, since it is larger than the sum of its proper divisors (827221).

153493919531 is an equidigital number, since it uses as much as digits as its factorization.

153493919531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827220.

The product of its digits is 1968300, while the sum is 53.

The spelling of 153493919531 in words is "one hundred fifty-three billion, four hundred ninety-three million, nine hundred nineteen thousand, five hundred thirty-one".