319472661 has 8 divisors (see below), whose sum is σ = 426722400. Its totient is φ = 212602352.

The previous prime is 319472641. The next prime is 319472693. The reversal of 319472661 is 166274913.

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

It is a cyclic number.

It is not a de Polignac number, because 319472661 - 2¹³ = 319464469 is a prime.

It is a super-2 number, since 2×319472661² = 204125562252841842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (319472641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92886 + ... + 96263.

It is an arithmetic number, because the mean of its divisors is an integer number (53340300).

Almost surely, 2^319472661 is an apocalyptic number.

It is an amenable number.

319472661 is a deficient number, since it is larger than the sum of its proper divisors (107249739).

319472661 is a wasteful number, since it uses less digits than its factorization.

319472661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189715.

The product of its digits is 54432, while the sum is 39.

The square root of 319472661 is about 17873.7981693875. The cubic root of 319472661 is about 683.6144483398.

It can be divided in two parts, 3194 and 72661, that added together give a triangular number (75855 = T₃₈₉).

The spelling of 319472661 in words is "three hundred nineteen million, four hundred seventy-two thousand, six hundred sixty-one".