468721157 has 2 divisors, whose sum is σ = 468721158. Its totient is φ = 468721156.

The previous prime is 468721087. The next prime is 468721181. The reversal of 468721157 is 751127864.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 439279681 + 29441476 = 20959^2 + 5426^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-468721157 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 (468721657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 234360578 + 234360579.

It is an arithmetic number, because the mean of its divisors is an integer number (234360579).

Almost surely, 2^468721157 is an apocalyptic number.

It is an amenable number.

468721157 is a deficient number, since it is larger than the sum of its proper divisors (1).

468721157 is an equidigital number, since it uses as much as digits as its factorization.

468721157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94080, while the sum is 41.

The square root of 468721157 is about 21649.9689838115. The cubic root of 468721157 is about 776.7921933782.

The spelling of 468721157 in words is "four hundred sixty-eight million, seven hundred twenty-one thousand, one hundred fifty-seven".