189450495 has 40 divisors (see below), whose sum is σ = 365741376. Its totient is φ = 93265344.

The previous prime is 189450493. The next prime is 189450529. The reversal of 189450495 is 594054981.

It is not a de Polignac number, because 189450495 - 2¹ = 189450493 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 189450495.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189450493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 12727 + ... + 23256.

Almost surely, 2^189450495 is an apocalyptic number.

189450495 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

189450495 is a deficient number, since it is larger than the sum of its proper divisors (176290881).

189450495 is a wasteful number, since it uses less digits than its factorization.

189450495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36013 (or 36004 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The square root of 189450495 is about 13764.1016779156. The cubic root of 189450495 is about 574.3349538502.

The spelling of 189450495 in words is "one hundred eighty-nine million, four hundred fifty thousand, four hundred ninety-five".