189419131 has 8 divisors (see below), whose sum is σ = 207620928. Its totient is φ = 171381000.

The previous prime is 189419129. The next prime is 189419177. The reversal of 189419131 is 131914981.

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 189419131 - 2¹ = 189419129 is a prime.

It is a super-2 number, since 2×189419131² = 71759214377590322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189419101) 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, 38485 + ... + 43126.

It is an arithmetic number, because the mean of its divisors is an integer number (25952616).

Almost surely, 2^189419131 is an apocalyptic number.

189419131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

189419131 is a deficient number, since it is larger than the sum of its proper divisors (18201797).

189419131 is a wasteful number, since it uses less digits than its factorization.

189419131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81833.

The product of its digits is 7776, while the sum is 37.

The square root of 189419131 is about 13762.9622901467. The cubic root of 189419131 is about 574.3032579083.

It can be divided in two parts, 1894 and 19131, that added together give a square (21025 = 145²).

The spelling of 189419131 in words is "one hundred eighty-nine million, four hundred nineteen thousand, one hundred thirty-one".