318906542 has 8 divisors (see below), whose sum is σ = 478766376. Its totient is φ = 159317752.

The previous prime is 318906541. The next prime is 318906551. The reversal of 318906542 is 245609813.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 318906496 and 318906505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318906541) 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, 64793 + ... + 69540.

It is an arithmetic number, because the mean of its divisors is an integer number (59845797).

Almost surely, 2^318906542 is an apocalyptic number.

318906542 is a deficient number, since it is larger than the sum of its proper divisors (159859834).

318906542 is a wasteful number, since it uses less digits than its factorization.

318906542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135522.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 318906542 is about 17857.9545861221. The cubic root of 318906542 is about 683.2104117318.

The spelling of 318906542 in words is "three hundred eighteen million, nine hundred six thousand, five hundred forty-two".