189311454 has 12 divisors (see below), whose sum is σ = 410174856. Its totient is φ = 63103812.

The previous prime is 189311453. The next prime is 189311461. The reversal of 189311454 is 454113981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189311453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5258634 + ... + 5258669.

It is an arithmetic number, because the mean of its divisors is an integer number (34181238).

Almost surely, 2^189311454 is an apocalyptic number.

189311454 is an abundant number, since it is smaller than the sum of its proper divisors (220863402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189311454 is a wasteful number, since it uses less digits than its factorization.

189311454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10517311 (or 10517308 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 189311454 is about 13759.0498945240. The cubic root of 189311454 is about 574.1944146727.

The spelling of 189311454 in words is "one hundred eighty-nine million, three hundred eleven thousand, four hundred fifty-four".