490954157 has 4 divisors (see below), whose sum is σ = 491473536. Its totient is φ = 490434780.

The previous prime is 490954133. The next prime is 490954183. The reversal of 490954157 is 751459094.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 751459094 = 2 ⋅375729547.

It is a cyclic number.

It is not a de Polignac number, because 490954157 - 2¹⁴ = 490937773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490954117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258269 + ... + 260162.

It is an arithmetic number, because the mean of its divisors is an integer number (122868384).

Almost surely, 2^490954157 is an apocalyptic number.

It is an amenable number.

490954157 is a deficient number, since it is larger than the sum of its proper divisors (519379).

490954157 is an equidigital number, since it uses as much as digits as its factorization.

490954157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519378.

The product of its (nonzero) digits is 226800, while the sum is 44.

The square root of 490954157 is about 22157.4853491997. The cubic root of 490954157 is about 788.8849070405.

The spelling of 490954157 in words is "four hundred ninety million, nine hundred fifty-four thousand, one hundred fifty-seven".