670239149 has 2 divisors, whose sum is σ = 670239150. Its totient is φ = 670239148.

The previous prime is 670239091. The next prime is 670239181. The reversal of 670239149 is 941932076.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 584769124 + 85470025 = 24182^2 + 9245^2 .

It is a cyclic number.

It is not a de Polignac number, because 670239149 - 2²⁴ = 653461933 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (670233149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335119574 + 335119575.

It is an arithmetic number, because the mean of its divisors is an integer number (335119575).

Almost surely, 2^670239149 is an apocalyptic number.

It is an amenable number.

670239149 is a deficient number, since it is larger than the sum of its proper divisors (1).

670239149 is an equidigital number, since it uses as much as digits as its factorization.

670239149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 670239149 is about 25888.9773648941. The cubic root of 670239149 is about 875.1381110972.

The spelling of 670239149 in words is "six hundred seventy million, two hundred thirty-nine thousand, one hundred forty-nine".