189207853 has 4 divisors (see below), whose sum is σ = 193233600. Its totient is φ = 185182108.

The previous prime is 189207797. The next prime is 189207881. The reversal of 189207853 is 358702981.

189207853 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189207853 is a prime.

It is a super-2 number, since 2×189207853² = 71599223273739218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189207553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2012803 + ... + 2012896.

It is an arithmetic number, because the mean of its divisors is an integer number (48308400).

Almost surely, 2^189207853 is an apocalyptic number.

It is an amenable number.

189207853 is a deficient number, since it is larger than the sum of its proper divisors (4025747).

189207853 is an equidigital number, since it uses as much as digits as its factorization.

189207853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4025746.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 189207853 is about 13755.2845481291. The cubic root of 189207853 is about 574.0896526186.

The spelling of 189207853 in words is "one hundred eighty-nine million, two hundred seven thousand, eight hundred fifty-three".