149032123 has 2 divisors, whose sum is σ = 149032124. Its totient is φ = 149032122.

The previous prime is 149032099. The next prime is 149032127. The reversal of 149032123 is 321230941.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149032123 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (149032127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74516061 + 74516062.

It is an arithmetic number, because the mean of its divisors is an integer number (74516062).

Almost surely, 2^149032123 is an apocalyptic number.

149032123 is a deficient number, since it is larger than the sum of its proper divisors (1).

149032123 is an equidigital number, since it uses as much as digits as its factorization.

149032123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 149032123 is about 12207.8713541715. The cubic root of 149032123 is about 530.1840146602.

The spelling of 149032123 in words is "one hundred forty-nine million, thirty-two thousand, one hundred twenty-three".