189475249 has 2 divisors, whose sum is σ = 189475250. Its totient is φ = 189475248.

The previous prime is 189475213. The next prime is 189475271. The reversal of 189475249 is 942574981.

189475249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98406400 + 91068849 = 9920^2 + 9543^2 .

It is a cyclic number.

It is not a de Polignac number, because 189475249 - 2⁹ = 189474737 is a prime.

It is a super-2 number, since 2×189475249² = 71801739967224002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (189475289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94737624 + 94737625.

It is an arithmetic number, because the mean of its divisors is an integer number (94737625).

Almost surely, 2^189475249 is an apocalyptic number.

It is an amenable number.

189475249 is a deficient number, since it is larger than the sum of its proper divisors (1).

189475249 is an equidigital number, since it uses as much as digits as its factorization.

189475249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 49.

The square root of 189475249 is about 13765.0008717762. Note that the first 3 decimals coincide. The cubic root of 189475249 is about 574.3599673650.

The spelling of 189475249 in words is "one hundred eighty-nine million, four hundred seventy-five thousand, two hundred forty-nine".