313642144 has 12 divisors (see below), whose sum is σ = 617483034. Its totient is φ = 156821056.

The previous prime is 313642127. The next prime is 313642157. The reversal of 313642144 is 441246313.

It can be written as a sum of positive squares in only one way, i.e., 310182544 + 3459600 = 17612^2 + 1860^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4900627 + ... + 4900690.

Almost surely, 2^313642144 is an apocalyptic number.

It is an amenable number.

313642144 is a deficient number, since it is larger than the sum of its proper divisors (303840890).

313642144 is an equidigital number, since it uses as much as digits as its factorization.

313642144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9801327 (or 9801319 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

The square root of 313642144 is about 17709.9447768761. The cubic root of 313642144 is about 679.4301338670.

Adding to 313642144 its reverse (441246313), we get a palindrome (754888457).

The spelling of 313642144 in words is "three hundred thirteen million, six hundred forty-two thousand, one hundred forty-four".