31319066 has 8 divisors (see below), whose sum is σ = 49742100. Its totient is φ = 14738368.

The previous prime is 31319053. The next prime is 31319081. The reversal of 31319066 is 66091313.

It can be written as a sum of positive squares in 2 ways, for example, as 30858025 + 461041 = 5555^2 + 679^2 .

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

It is a super-2 number, since 2×31319066² = 1961767790224712, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 460541 + ... + 460608.

Almost surely, 2^31319066 is an apocalyptic number.

31319066 is a deficient number, since it is larger than the sum of its proper divisors (18423034).

31319066 is a wasteful number, since it uses less digits than its factorization.

31319066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921168.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 31319066 is about 5596.3439851389. The cubic root of 31319066 is about 315.2121389525.

The spelling of 31319066 in words is "thirty-one million, three hundred nineteen thousand, sixty-six".