189472313 has 8 divisors (see below), whose sum is σ = 199926720. Its totient is φ = 179066160.

The previous prime is 189472307. The next prime is 189472343. The reversal of 189472313 is 313274981.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189472313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189472343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3845 + ... + 19842.

It is an arithmetic number, because the mean of its divisors is an integer number (24990840).

Almost surely, 2^189472313 is an apocalyptic number.

It is an amenable number.

189472313 is a deficient number, since it is larger than the sum of its proper divisors (10454407).

189472313 is a wasteful number, since it uses less digits than its factorization.

189472313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24127.

The product of its digits is 36288, while the sum is 38.

The square root of 189472313 is about 13764.8942240760. The cubic root of 189472313 is about 574.3570006985.

The spelling of 189472313 in words is "one hundred eighty-nine million, four hundred seventy-two thousand, three hundred thirteen".