319131042 has 16 divisors (see below), whose sum is σ = 640105632. Its totient is φ = 106069760.

The previous prime is 319131041. The next prime is 319131053. The reversal of 319131042 is 240131913.

It is not an unprimeable number, because it can be changed into a prime (319131041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74559 + ... + 78722.

It is an arithmetic number, because the mean of its divisors is an integer number (40006602).

Almost surely, 2^319131042 is an apocalyptic number.

319131042 is an abundant number, since it is smaller than the sum of its proper divisors (320974590).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

319131042 is a wasteful number, since it uses less digits than its factorization.

319131042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153633.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 319131042 is about 17864.2391945473. The cubic root of 319131042 is about 683.3706935486.

Adding to 319131042 its reverse (240131913), we get a palindrome (559262955).

The spelling of 319131042 in words is "three hundred nineteen million, one hundred thirty-one thousand, forty-two".