189397513 has 8 divisors (see below), whose sum is σ = 191416320. Its totient is φ = 187387200.

The previous prime is 189397489. The next prime is 189397517. The reversal of 189397513 is 315793981.

It is a happy number.

189397513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 189397513 - 2⁹ = 189397001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189397517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49068 + ... + 52786.

It is an arithmetic number, because the mean of its divisors is an integer number (23927040).

Almost surely, 2^189397513 is an apocalyptic number.

It is an amenable number.

189397513 is a deficient number, since it is larger than the sum of its proper divisors (2018807).

189397513 is a wasteful number, since it uses less digits than its factorization.

189397513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4247.

The product of its digits is 204120, while the sum is 46.

The square root of 189397513 is about 13762.1768990229. The cubic root of 189397513 is about 574.2814090765.

The spelling of 189397513 in words is "one hundred eighty-nine million, three hundred ninety-seven thousand, five hundred thirteen".