75936139 has 2 divisors, whose sum is σ = 75936140. Its totient is φ = 75936138.

The previous prime is 75936131. The next prime is 75936163. The reversal of 75936139 is 93163957.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 75936139 - 2³ = 75936131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 75936095 and 75936104.

It is not a weakly prime, because it can be changed into another prime (75936131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37968069 + 37968070.

It is an arithmetic number, because the mean of its divisors is an integer number (37968070).

Almost surely, 2^75936139 is an apocalyptic number.

75936139 is a deficient number, since it is larger than the sum of its proper divisors (1).

75936139 is an equidigital number, since it uses as much as digits as its factorization.

75936139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 153090, while the sum is 43.

The square root of 75936139 is about 8714.1344377970. The cubic root of 75936139 is about 423.4636831047.

The spelling of 75936139 in words is "seventy-five million, nine hundred thirty-six thousand, one hundred thirty-nine".