674131553 has 8 divisors (see below), whose sum is σ = 691052040. Its totient is φ = 657233920.

The previous prime is 674131547. The next prime is 674131559. The reversal of 674131553 is 355131476.

It is an interprime number because it is at equal distance from previous prime (674131547) and next prime (674131559).

It can be written as a sum of positive squares in 4 ways, for example, as 119858704 + 554272849 = 10948^2 + 23543^2 .

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-674131553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (674131559) 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, 64733 + ... + 74421.

It is an arithmetic number, because the mean of its divisors is an integer number (86381505).

Almost surely, 2^674131553 is an apocalyptic number.

It is an amenable number.

674131553 is a deficient number, since it is larger than the sum of its proper divisors (16920487).

674131553 is a wasteful number, since it uses less digits than its factorization.

674131553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11427.

The product of its digits is 37800, while the sum is 35.

The square root of 674131553 is about 25964.0434639907. The cubic root of 674131553 is about 876.8289593533.

The spelling of 674131553 in words is "six hundred seventy-four million, one hundred thirty-one thousand, five hundred fifty-three".