313322142 has 32 divisors (see below), whose sum is σ = 735524352. Its totient is φ = 87100704.

The previous prime is 313322111. The next prime is 313322171. The reversal of 313322142 is 241223313.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99258 + ... + 102365.

It is an arithmetic number, because the mean of its divisors is an integer number (22985136).

Almost surely, 2^313322142 is an apocalyptic number.

313322142 is an abundant number, since it is smaller than the sum of its proper divisors (422202210).

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

313322142 is a wasteful number, since it uses less digits than its factorization.

313322142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201672.

The product of its digits is 864, while the sum is 21.

The square root of 313322142 is about 17700.9079428147. The cubic root of 313322142 is about 679.1989861611.

Adding to 313322142 its reverse (241223313), we get a palindrome (554545455).

The spelling of 313322142 in words is "three hundred thirteen million, three hundred twenty-two thousand, one hundred forty-two".