149842279 has 2 divisors, whose sum is σ = 149842280. Its totient is φ = 149842278.

The previous prime is 149842271. The next prime is 149842321. The reversal of 149842279 is 972248941.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 149842279 - 2³ = 149842271 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149842271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74921139 + 74921140.

It is an arithmetic number, because the mean of its divisors is an integer number (74921140).

Almost surely, 2^149842279 is an apocalyptic number.

149842279 is a deficient number, since it is larger than the sum of its proper divisors (1).

149842279 is an equidigital number, since it uses as much as digits as its factorization.

149842279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 46.

The square root of 149842279 is about 12241.0080875719. The cubic root of 149842279 is about 531.1429930912.

The spelling of 149842279 in words is "one hundred forty-nine million, eight hundred forty-two thousand, two hundred seventy-nine".