318106402 has 8 divisors (see below), whose sum is σ = 477718956. Its totient is φ = 158866752.

The previous prime is 318106391. The next prime is 318106409. The reversal of 318106402 is 204601813.

It can be written as a sum of positive squares in 2 ways, for example, as 316092841 + 2013561 = 17779^2 + 1419^2 .

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

It is not an unprimeable number, because it can be changed into a prime (318106409) 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, 91083 + ... + 94510.

Almost surely, 2^318106402 is an apocalyptic number.

318106402 is a deficient number, since it is larger than the sum of its proper divisors (159612554).

318106402 is a wasteful number, since it uses less digits than its factorization.

318106402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186452.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 318106402 is about 17835.5376145492. The cubic root of 318106402 is about 682.6385390560.

The spelling of 318106402 in words is "three hundred eighteen million, one hundred six thousand, four hundred two".