149923201 has 2 divisors, whose sum is σ = 149923202. Its totient is φ = 149923200.

The previous prime is 149923181. The next prime is 149923229. The reversal of 149923201 is 102329941.

149923201 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., 149426176 + 497025 = 12224^2 + 705^2 .

It is a cyclic number.

It is not a de Polignac number, because 149923201 - 2¹⁷ = 149792129 is a prime.

It is not a weakly prime, because it can be changed into another prime (149923231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74961600 + 74961601.

It is an arithmetic number, because the mean of its divisors is an integer number (74961601).

Almost surely, 2^149923201 is an apocalyptic number.

It is an amenable number.

149923201 is a deficient number, since it is larger than the sum of its proper divisors (1).

149923201 is an equidigital number, since it uses as much as digits as its factorization.

149923201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 149923201 is about 12244.3130064532. The cubic root of 149923201 is about 531.2385900940.

The spelling of 149923201 in words is "one hundred forty-nine million, nine hundred twenty-three thousand, two hundred one".