189701641 has 2 divisors, whose sum is σ = 189701642. Its totient is φ = 189701640.

The previous prime is 189701621. The next prime is 189701647. The reversal of 189701641 is 146107981.

189701641 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., 180338041 + 9363600 = 13429^2 + 3060^2 .

It is a cyclic number.

It is not a de Polignac number, because 189701641 - 2⁵ = 189701609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 189701641.

It is not a weakly prime, because it can be changed into another prime (189701647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94850820 + 94850821.

It is an arithmetic number, because the mean of its divisors is an integer number (94850821).

Almost surely, 2^189701641 is an apocalyptic number.

It is an amenable number.

189701641 is a deficient number, since it is larger than the sum of its proper divisors (1).

189701641 is an equidigital number, since it uses as much as digits as its factorization.

189701641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 189701641 is about 13773.2218816078. The cubic root of 189701641 is about 574.5886317919.

The spelling of 189701641 in words is "one hundred eighty-nine million, seven hundred one thousand, six hundred forty-one".