189470451 has 16 divisors (see below), whose sum is σ = 273113600. Its totient is φ = 116430048.

The previous prime is 189470447. The next prime is 189470467. The reversal of 189470451 is 154074981.

It is not a de Polignac number, because 189470451 - 2² = 189470447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (189470401) 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, 42811 + ... + 47028.

It is an arithmetic number, because the mean of its divisors is an integer number (17069600).

Almost surely, 2^189470451 is an apocalyptic number.

189470451 is a deficient number, since it is larger than the sum of its proper divisors (83643149).

189470451 is a wasteful number, since it uses less digits than its factorization.

189470451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89898.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 189470451 is about 13764.8265880831. The cubic root of 189470451 is about 574.3551192341.

The spelling of 189470451 in words is "one hundred eighty-nine million, four hundred seventy thousand, four hundred fifty-one".