60664139 has 2 divisors, whose sum is σ = 60664140. Its totient is φ = 60664138.

The previous prime is 60664111. The next prime is 60664151. The reversal of 60664139 is 93146606.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 60664139 - 2²⁴ = 43886923 is a prime.

It is a super-2 number, since 2×60664139² = 7360275521222642, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 60664099 and 60664108.

It is not a weakly prime, because it can be changed into another prime (60664189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30332069 + 30332070.

It is an arithmetic number, because the mean of its divisors is an integer number (30332070).

Almost surely, 2^60664139 is an apocalyptic number.

60664139 is a deficient number, since it is larger than the sum of its proper divisors (1).

60664139 is an equidigital number, since it uses as much as digits as its factorization.

60664139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 60664139 is about 7788.7187007877. The cubic root of 60664139 is about 392.9259205959.

The spelling of 60664139 in words is "sixty million, six hundred sixty-four thousand, one hundred thirty-nine".