189793131 has 8 divisors (see below), whose sum is σ = 276062784. Its totient is φ = 115026120.

The previous prime is 189793127. The next prime is 189793133. The reversal of 189793131 is 131397981.

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

It is not a de Polignac number, because 189793131 - 2² = 189793127 is a prime.

It is a super-2 number, since 2×189793131² = 72042865149566322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (189793133) 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, 2875621 + ... + 2875686.

It is an arithmetic number, because the mean of its divisors is an integer number (34507848).

Almost surely, 2^189793131 is an apocalyptic number.

189793131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

189793131 is a deficient number, since it is larger than the sum of its proper divisors (86269653).

189793131 is a wasteful number, since it uses less digits than its factorization.

189793131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5751321.

The product of its digits is 40824, while the sum is 42.

The square root of 189793131 is about 13776.5427811189. The cubic root of 189793131 is about 574.6809885138.

The spelling of 189793131 in words is "one hundred eighty-nine million, seven hundred ninety-three thousand, one hundred thirty-one".