189480751 has 4 divisors (see below), whose sum is σ = 196014600. Its totient is φ = 182946904.

The previous prime is 189480719. The next prime is 189480763. The reversal of 189480751 is 157084981.

It is a happy number.

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 189480751 - 2⁵ = 189480719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 189480698 and 189480707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189480251) 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, 3266881 + ... + 3266938.

It is an arithmetic number, because the mean of its divisors is an integer number (49003650).

Almost surely, 2^189480751 is an apocalyptic number.

189480751 is a deficient number, since it is larger than the sum of its proper divisors (6533849).

189480751 is an equidigital number, since it uses as much as digits as its factorization.

189480751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6533848.

The product of its (nonzero) digits is 80640, while the sum is 43.

The square root of 189480751 is about 13765.2007250167. The cubic root of 189480751 is about 574.3655267506.

The spelling of 189480751 in words is "one hundred eighty-nine million, four hundred eighty thousand, seven hundred fifty-one".