149090297 has 2 divisors, whose sum is σ = 149090298. Its totient is φ = 149090296.

The previous prime is 149090287. The next prime is 149090317. The reversal of 149090297 is 792090941.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127893481 + 21196816 = 11309^2 + 4604^2 .

It is an emirp because it is prime and its reverse (792090941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149090297 - 2⁶ = 149090233 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (149090237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74545148 + 74545149.

It is an arithmetic number, because the mean of its divisors is an integer number (74545149).

Almost surely, 2^149090297 is an apocalyptic number.

It is an amenable number.

149090297 is a deficient number, since it is larger than the sum of its proper divisors (1).

149090297 is an equidigital number, since it uses as much as digits as its factorization.

149090297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 149090297 is about 12210.2537647667. The cubic root of 149090297 is about 530.2529906456.

The spelling of 149090297 in words is "one hundred forty-nine million, ninety thousand, two hundred ninety-seven".