490311145 has 4 divisors (see below), whose sum is σ = 588373380. Its totient is φ = 392248912.

The previous prime is 490311139. The next prime is 490311167. The reversal of 490311145 is 541113094.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 192127321 + 298183824 = 13861^2 + 17268^2 .

It is a cyclic number.

It is not a de Polignac number, because 490311145 - 2³ = 490311137 is a prime.

It is a super-2 number, since 2×490311145² = 480810037822422050, which contains 22 as substring.

It is an unprimeable number.

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, 49031110 + ... + 49031119.

It is an arithmetic number, because the mean of its divisors is an integer number (147093345).

Almost surely, 2^490311145 is an apocalyptic number.

It is an amenable number.

490311145 is a deficient number, since it is larger than the sum of its proper divisors (98062235).

490311145 is an equidigital number, since it uses as much as digits as its factorization.

490311145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98062234.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 490311145 is about 22142.9705550091. The cubic root of 490311145 is about 788.5403507155.

It can be divided in two parts, 49031 and 1145, that added together give a square (50176 = 224²).

The spelling of 490311145 in words is "four hundred ninety million, three hundred eleven thousand, one hundred forty-five".