490872157 has 2 divisors, whose sum is σ = 490872158. Its totient is φ = 490872156.

The previous prime is 490872149. The next prime is 490872199. The reversal of 490872157 is 751278094.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 467164996 + 23707161 = 21614^2 + 4869^2 .

It is a cyclic number.

It is not a de Polignac number, because 490872157 - 2³ = 490872149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (490872757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245436078 + 245436079.

It is an arithmetic number, because the mean of its divisors is an integer number (245436079).

Almost surely, 2^490872157 is an apocalyptic number.

It is an amenable number.

490872157 is a deficient number, since it is larger than the sum of its proper divisors (1).

490872157 is an equidigital number, since it uses as much as digits as its factorization.

490872157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 490872157 is about 22155.6348814472. The cubic root of 490872157 is about 788.8409842945.

The spelling of 490872157 in words is "four hundred ninety million, eight hundred seventy-two thousand, one hundred fifty-seven".