147739139 has 2 divisors, whose sum is σ = 147739140. Its totient is φ = 147739138.

The previous prime is 147739103. The next prime is 147739147. The reversal of 147739139 is 931937741.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 147739139 - 2⁸ = 147738883 is a prime.

It is a super-2 number, since 2×147739139² = 43653706384922642, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 147739139.

It is not a weakly prime, because it can be changed into another prime (147739159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73869569 + 73869570.

It is an arithmetic number, because the mean of its divisors is an integer number (73869570).

Almost surely, 2^147739139 is an apocalyptic number.

147739139 is a deficient number, since it is larger than the sum of its proper divisors (1).

147739139 is an equidigital number, since it uses as much as digits as its factorization.

147739139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 142884, while the sum is 44.

The square root of 147739139 is about 12154.7990110902. The cubic root of 147739139 is about 528.6462890146.

The spelling of 147739139 in words is "one hundred forty-seven million, seven hundred thirty-nine thousand, one hundred thirty-nine".