189732419 has 2 divisors, whose sum is σ = 189732420. Its totient is φ = 189732418.

The previous prime is 189732407. The next prime is 189732437. The reversal of 189732419 is 914237981.

189732419 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189732419 is a prime.

It is a super-2 number, since 2×189732419² = 71996781639183122, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 189732419.

It is not a weakly prime, because it can be changed into another prime (189732479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94866209 + 94866210.

It is an arithmetic number, because the mean of its divisors is an integer number (94866210).

Almost surely, 2^189732419 is an apocalyptic number.

189732419 is a deficient number, since it is larger than the sum of its proper divisors (1).

189732419 is an equidigital number, since it uses as much as digits as its factorization.

189732419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 44.

The square root of 189732419 is about 13774.3391493022. The cubic root of 189732419 is about 574.6197046782.

The spelling of 189732419 in words is "one hundred eighty-nine million, seven hundred thirty-two thousand, four hundred nineteen".