60439139 has 2 divisors, whose sum is σ = 60439140. Its totient is φ = 60439138.

The previous prime is 60439129. The next prime is 60439151. The reversal of 60439139 is 93193406.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 60439139 - 2²⁴ = 43661923 is a prime.

It is a super-2 number, since 2×60439139² = 7305779046122642, which contains 22 as substring.

It is a Chen prime.

It is equal to p_3586661 and since 60439139 and 3586661 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 60439099 and 60439108.

It is not a weakly prime, because it can be changed into another prime (60439129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30219569 + 30219570.

It is an arithmetic number, because the mean of its divisors is an integer number (30219570).

Almost surely, 2^60439139 is an apocalyptic number.

60439139 is a deficient number, since it is larger than the sum of its proper divisors (1).

60439139 is an equidigital number, since it uses as much as digits as its factorization.

60439139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 60439139 is about 7774.2613153920. The cubic root of 60439139 is about 392.4395384711.

The spelling of 60439139 in words is "sixty million, four hundred thirty-nine thousand, one hundred thirty-nine".