149816423 has 2 divisors, whose sum is σ = 149816424. Its totient is φ = 149816422.

The previous prime is 149816413. The next prime is 149816473. The reversal of 149816423 is 324618941.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 149816423 - 2²⁰ = 148767847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149816413) 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, 74908211 + 74908212.

It is an arithmetic number, because the mean of its divisors is an integer number (74908212).

Almost surely, 2^149816423 is an apocalyptic number.

149816423 is a deficient number, since it is larger than the sum of its proper divisors (1).

149816423 is an equidigital number, since it uses as much as digits as its factorization.

149816423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 38.

The square root of 149816423 is about 12239.9519198402. The cubic root of 149816423 is about 531.1124409148.

The spelling of 149816423 in words is "one hundred forty-nine million, eight hundred sixteen thousand, four hundred twenty-three".