75157427 has 2 divisors, whose sum is σ = 75157428. Its totient is φ = 75157426.

The previous prime is 75157417. The next prime is 75157477. The reversal of 75157427 is 72475157.

It is a weak prime.

It is an emirp because it is prime and its reverse (72475157) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75157427 - 2⁸ = 75157171 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (75157417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37578713 + 37578714.

It is an arithmetic number, because the mean of its divisors is an integer number (37578714).

Almost surely, 2^75157427 is an apocalyptic number.

75157427 is a deficient number, since it is larger than the sum of its proper divisors (1).

75157427 is an equidigital number, since it uses as much as digits as its factorization.

75157427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68600, while the sum is 38.

The square root of 75157427 is about 8669.3383253856. The cubic root of 75157427 is about 422.0111910511.

The spelling of 75157427 in words is "seventy-five million, one hundred fifty-seven thousand, four hundred twenty-seven".