670555131 has 8 divisors (see below), whose sum is σ = 900600144. Its totient is φ = 443773440.

The previous prime is 670555121. The next prime is 670555159. The reversal of 670555131 is 131555076.

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

It is not a de Polignac number, because 670555131 - 2⁷ = 670555003 is a prime.

It is a super-2 number, since 2×670555131² = 899288367420854322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 670555092 and 670555101.

It is not an unprimeable number, because it can be changed into a prime (670555111) 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, 815350 + ... + 816171.

It is an arithmetic number, because the mean of its divisors is an integer number (112575018).

Almost surely, 2^670555131 is an apocalyptic number.

670555131 is a deficient number, since it is larger than the sum of its proper divisors (230045013).

670555131 is a wasteful number, since it uses less digits than its factorization.

670555131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1631661.

The product of its (nonzero) digits is 15750, while the sum is 33.

The square root of 670555131 is about 25895.0792815933. The cubic root of 670555131 is about 875.2756164669.

The spelling of 670555131 in words is "six hundred seventy million, five hundred fifty-five thousand, one hundred thirty-one".