189013245 has 16 divisors (see below), whose sum is σ = 303504192. Its totient is φ = 100446080.

The previous prime is 189013243. The next prime is 189013249. The reversal of 189013245 is 542310981.

It is not a de Polignac number, because 189013245 - 2¹ = 189013243 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189013243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18207 + ... + 26636.

It is an arithmetic number, because the mean of its divisors is an integer number (18969012).

Almost surely, 2^189013245 is an apocalyptic number.

189013245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

189013245 is a deficient number, since it is larger than the sum of its proper divisors (114490947).

189013245 is a wasteful number, since it uses less digits than its factorization.

189013245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45132.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 189013245 is about 13748.2087924209. The cubic root of 189013245 is about 573.8927602188.

The spelling of 189013245 in words is "one hundred eighty-nine million, thirteen thousand, two hundred forty-five".