75310139 has 2 divisors, whose sum is σ = 75310140. Its totient is φ = 75310138.

The previous prime is 75310127. The next prime is 75310163. The reversal of 75310139 is 93101357.

It is a weak prime.

It is an emirp because it is prime and its reverse (93101357) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75310139 - 2¹² = 75306043 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (75310189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37655069 + 37655070.

It is an arithmetic number, because the mean of its divisors is an integer number (37655070).

Almost surely, 2^75310139 is an apocalyptic number.

75310139 is a deficient number, since it is larger than the sum of its proper divisors (1).

75310139 is an equidigital number, since it uses as much as digits as its factorization.

75310139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2835, while the sum is 29.

The square root of 75310139 is about 8678.1414484900. The cubic root of 75310139 is about 422.2968251550.

The spelling of 75310139 in words is "seventy-five million, three hundred ten thousand, one hundred thirty-nine".