149349451 has 2 divisors, whose sum is σ = 149349452. Its totient is φ = 149349450.

The previous prime is 149349439. The next prime is 149349457. The reversal of 149349451 is 154943941.

149349451 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 is a cyclic number.

It is not a de Polignac number, because 149349451 - 2⁷ = 149349323 is a prime.

It is not a weakly prime, because it can be changed into another prime (149349457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74674725 + 74674726.

It is an arithmetic number, because the mean of its divisors is an integer number (74674726).

Almost surely, 2^149349451 is an apocalyptic number.

149349451 is a deficient number, since it is larger than the sum of its proper divisors (1).

149349451 is an equidigital number, since it uses as much as digits as its factorization.

149349451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 40.

The square root of 149349451 is about 12220.8613035252. The cubic root of 149349451 is about 530.5600476036.

The spelling of 149349451 in words is "one hundred forty-nine million, three hundred forty-nine thousand, four hundred fifty-one".