475707157 has 2 divisors, whose sum is σ = 475707158. Its totient is φ = 475707156.

The previous prime is 475707143. The next prime is 475707181. The reversal of 475707157 is 751707574.

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., 238115761 + 237591396 = 15431^2 + 15414^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-475707157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (475704157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237853578 + 237853579.

It is an arithmetic number, because the mean of its divisors is an integer number (237853579).

Almost surely, 2^475707157 is an apocalyptic number.

It is an amenable number.

475707157 is a deficient number, since it is larger than the sum of its proper divisors (1).

475707157 is an equidigital number, since it uses as much as digits as its factorization.

475707157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240100, while the sum is 43.

The square root of 475707157 is about 21810.7119782918. The cubic root of 475707157 is about 780.6323805441.

The spelling of 475707157 in words is "four hundred seventy-five million, seven hundred seven thousand, one hundred fifty-seven".