149231123 has 2 divisors, whose sum is σ = 149231124. Its totient is φ = 149231122.

The previous prime is 149231087. The next prime is 149231183. The reversal of 149231123 is 321132941.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 149231123 - 2²⁴ = 132453907 is a prime.

It is a super-2 number, since 2×149231123² = 44539856143682258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 149231092 and 149231101.

It is not a weakly prime, because it can be changed into another prime (149231183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74615561 + 74615562.

It is an arithmetic number, because the mean of its divisors is an integer number (74615562).

Almost surely, 2^149231123 is an apocalyptic number.

149231123 is a deficient number, since it is larger than the sum of its proper divisors (1).

149231123 is an equidigital number, since it uses as much as digits as its factorization.

149231123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 26.

The square root of 149231123 is about 12216.0191142614. The cubic root of 149231123 is about 530.4198915330.

The spelling of 149231123 in words is "one hundred forty-nine million, two hundred thirty-one thousand, one hundred twenty-three".