185034139 has 2 divisors, whose sum is σ = 185034140. Its totient is φ = 185034138.

The previous prime is 185034127. The next prime is 185034169. The reversal of 185034139 is 931430581.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 185034139 - 2²³ = 176645531 is a prime.

It is not a weakly prime, because it can be changed into another prime (185034169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 92517069 + 92517070.

It is an arithmetic number, because the mean of its divisors is an integer number (92517070).

Almost surely, 2^185034139 is an apocalyptic number.

185034139 is a deficient number, since it is larger than the sum of its proper divisors (1).

185034139 is an equidigital number, since it uses as much as digits as its factorization.

185034139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 185034139 is about 13602.7254254432. The cubic root of 185034139 is about 569.8369688663.

The spelling of 185034139 in words is "one hundred eighty-five million, thirty-four thousand, one hundred thirty-nine".