139670353 has 2 divisors, whose sum is σ = 139670354. Its totient is φ = 139670352.

The previous prime is 139670347. The next prime is 139670357. The reversal of 139670353 is 353076931.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89643024 + 50027329 = 9468^2 + 7073^2 .

It is a cyclic number.

It is not a de Polignac number, because 139670353 - 2²¹ = 137573201 is a prime.

It is not a weakly prime, because it can be changed into another prime (139670357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69835176 + 69835177.

It is an arithmetic number, because the mean of its divisors is an integer number (69835177).

Almost surely, 2^139670353 is an apocalyptic number.

It is an amenable number.

139670353 is a deficient number, since it is larger than the sum of its proper divisors (1).

139670353 is an equidigital number, since it uses as much as digits as its factorization.

139670353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51030, while the sum is 37.

The square root of 139670353 is about 11818.2212282560. The cubic root of 139670353 is about 518.8415446318.

The spelling of 139670353 in words is "one hundred thirty-nine million, six hundred seventy thousand, three hundred fifty-three".