75475157 has 2 divisors, whose sum is σ = 75475158. Its totient is φ = 75475156.

The previous prime is 75475151. The next prime is 75475187. The reversal of 75475157 is 75157457.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75446596 + 28561 = 8686^2 + 169^2 .

It is a cyclic number.

It is not a de Polignac number, because 75475157 - 2⁸ = 75474901 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75475151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37737578 + 37737579.

It is an arithmetic number, because the mean of its divisors is an integer number (37737579).

Almost surely, 2^75475157 is an apocalyptic number.

It is an amenable number.

75475157 is a deficient number, since it is larger than the sum of its proper divisors (1).

75475157 is an equidigital number, since it uses as much as digits as its factorization.

75475157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 171500, while the sum is 41.

The square root of 75475157 is about 8687.6439268653. The cubic root of 75475157 is about 422.6050427987.

The spelling of 75475157 in words is "seventy-five million, four hundred seventy-five thousand, one hundred fifty-seven".