75423137 has 2 divisors, whose sum is σ = 75423138. Its totient is φ = 75423136.

The previous prime is 75423133. The next prime is 75423143. The reversal of 75423137 is 73132457.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65788321 + 9634816 = 8111^2 + 3104^2 .

It is a cyclic number.

It is not a de Polignac number, because 75423137 - 2² = 75423133 is a prime.

It is not a weakly prime, because it can be changed into another prime (75423133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37711568 + 37711569.

It is an arithmetic number, because the mean of its divisors is an integer number (37711569).

Almost surely, 2^75423137 is an apocalyptic number.

It is an amenable number.

75423137 is a deficient number, since it is larger than the sum of its proper divisors (1).

75423137 is an equidigital number, since it uses as much as digits as its factorization.

75423137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17640, while the sum is 32.

The square root of 75423137 is about 8684.6495035781. The cubic root of 75423137 is about 422.5079293121.

The spelling of 75423137 in words is "seventy-five million, four hundred twenty-three thousand, one hundred thirty-seven".