189013739 has 4 divisors (see below), whose sum is σ = 190747920. Its totient is φ = 187279560.

The previous prime is 189013697. The next prime is 189013751. The reversal of 189013739 is 937310981.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 189013739 - 2¹⁶ = 188948203 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 189013696 and 189013705.

It is not an unprimeable number, because it can be changed into a prime (189013339) 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, 866927 + ... + 867144.

It is an arithmetic number, because the mean of its divisors is an integer number (47686980).

Almost surely, 2^189013739 is an apocalyptic number.

189013739 is a deficient number, since it is larger than the sum of its proper divisors (1734181).

189013739 is a wasteful number, since it uses less digits than its factorization.

189013739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1734180.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 189013739 is about 13748.2267583860. The cubic root of 189013739 is about 573.8932601887.

The spelling of 189013739 in words is "one hundred eighty-nine million, thirteen thousand, seven hundred thirty-nine".