149354123 has 2 divisors, whose sum is σ = 149354124. Its totient is φ = 149354122.

The previous prime is 149354087. The next prime is 149354167. The reversal of 149354123 is 321453941.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 149354123 - 2⁶ = 149354059 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 149354123.

It is not a weakly prime, because it can be changed into another prime (149374123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74677061 + 74677062.

It is an arithmetic number, because the mean of its divisors is an integer number (74677062).

Almost surely, 2^149354123 is an apocalyptic number.

149354123 is a deficient number, since it is larger than the sum of its proper divisors (1).

149354123 is an equidigital number, since it uses as much as digits as its factorization.

149354123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 32.

The square root of 149354123 is about 12221.0524505871. The cubic root of 149354123 is about 530.5655799322.

The spelling of 149354123 in words is "one hundred forty-nine million, three hundred fifty-four thousand, one hundred twenty-three".