189351451 has 2 divisors, whose sum is σ = 189351452. Its totient is φ = 189351450.

The previous prime is 189351431. The next prime is 189351497. The reversal of 189351451 is 154153981.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 189351451 - 2⁵ = 189351419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 189351451.

It is not a weakly prime, because it can be changed into another prime (189351401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94675725 + 94675726.

It is an arithmetic number, because the mean of its divisors is an integer number (94675726).

Almost surely, 2^189351451 is an apocalyptic number.

189351451 is a deficient number, since it is larger than the sum of its proper divisors (1).

189351451 is an equidigital number, since it uses as much as digits as its factorization.

189351451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 37.

The square root of 189351451 is about 13760.5032974815. The cubic root of 189351451 is about 574.2348496918.

The spelling of 189351451 in words is "one hundred eighty-nine million, three hundred fifty-one thousand, four hundred fifty-one".