318322049 has 4 divisors (see below), whose sum is σ = 318631236. Its totient is φ = 318012864.

The previous prime is 318322031. The next prime is 318322091. The reversal of 318322049 is 940223813.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 133171600 + 185150449 = 11540^2 + 13607^2 .

It is a cyclic number.

It is not a de Polignac number, because 318322049 - 2¹⁶ = 318256513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (318322549) 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, 153044 + ... + 155109.

It is an arithmetic number, because the mean of its divisors is an integer number (79657809).

Almost surely, 2^318322049 is an apocalyptic number.

It is an amenable number.

318322049 is a deficient number, since it is larger than the sum of its proper divisors (309187).

318322049 is a wasteful number, since it uses less digits than its factorization.

318322049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309186.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 318322049 is about 17841.5820206617. The cubic root of 318322049 is about 682.7927596773.

The spelling of 318322049 in words is "three hundred eighteen million, three hundred twenty-two thousand, forty-nine".