319131642 has 8 divisors (see below), whose sum is σ = 638263296. Its totient is φ = 106377212.

The previous prime is 319131611. The next prime is 319131643. The reversal of 319131642 is 246131913.

It is a sphenic number, since it is the product of 3 distinct primes.

319131642 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (319131643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26594298 + ... + 26594309.

It is an arithmetic number, because the mean of its divisors is an integer number (79782912).

Almost surely, 2^319131642 is an apocalyptic number.

319131642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

319131642 is a wasteful number, since it uses less digits than its factorization.

319131642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53188612.

The product of its digits is 3888, while the sum is 30.

The square root of 319131642 is about 17864.2559878658. The cubic root of 319131642 is about 683.3711218180.

The spelling of 319131642 in words is "three hundred nineteen million, one hundred thirty-one thousand, six hundred forty-two".