189415297 has 2 divisors, whose sum is σ = 189415298. Its totient is φ = 189415296.

The previous prime is 189415283. The next prime is 189415339. The reversal of 189415297 is 792514981.

189415297 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189365121 + 50176 = 13761^2 + 224^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189415297 is a prime.

It is not a weakly prime, because it can be changed into another prime (189415277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94707648 + 94707649.

It is an arithmetic number, because the mean of its divisors is an integer number (94707649).

Almost surely, 2^189415297 is an apocalyptic number.

It is an amenable number.

189415297 is a deficient number, since it is larger than the sum of its proper divisors (1).

189415297 is an equidigital number, since it uses as much as digits as its factorization.

189415297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 46.

The square root of 189415297 is about 13762.8230025675. The cubic root of 189415297 is about 574.2993830910.

The spelling of 189415297 in words is "one hundred eighty-nine million, four hundred fifteen thousand, two hundred ninety-seven".