149424439 has 2 divisors, whose sum is σ = 149424440. Its totient is φ = 149424438.

The previous prime is 149424427. The next prime is 149424461. The reversal of 149424439 is 934424941.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 149424439 - 2⁷ = 149424311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149424479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74712219 + 74712220.

It is an arithmetic number, because the mean of its divisors is an integer number (74712220).

Almost surely, 2^149424439 is an apocalyptic number.

149424439 is a deficient number, since it is larger than the sum of its proper divisors (1).

149424439 is an equidigital number, since it uses as much as digits as its factorization.

149424439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 40.

The square root of 149424439 is about 12223.9289510370. The cubic root of 149424439 is about 530.6488303872.

The spelling of 149424439 in words is "one hundred forty-nine million, four hundred twenty-four thousand, four hundred thirty-nine".