670148131 has 2 divisors, whose sum is σ = 670148132. Its totient is φ = 670148130.

The previous prime is 670148123. The next prime is 670148147. The reversal of 670148131 is 131841076.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 670148131 - 2³ = 670148123 is a prime.

It is a super-2 number, since 2×670148131² = 898197034965586322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 670148093 and 670148102.

It is not a weakly prime, because it can be changed into another prime (670148191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335074065 + 335074066.

It is an arithmetic number, because the mean of its divisors is an integer number (335074066).

Almost surely, 2^670148131 is an apocalyptic number.

670148131 is a deficient number, since it is larger than the sum of its proper divisors (1).

670148131 is an equidigital number, since it uses as much as digits as its factorization.

670148131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 670148131 is about 25887.2194528497. The cubic root of 670148131 is about 875.0984949260.

The spelling of 670148131 in words is "six hundred seventy million, one hundred forty-eight thousand, one hundred thirty-one".