149345279 has 4 divisors (see below), whose sum is σ = 155838576. Its totient is φ = 142851984.

The previous prime is 149345267. The next prime is 149345281. The reversal of 149345279 is 972543941.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 149345279 - 2⁸ = 149345023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149342279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3246614 + ... + 3246659.

It is an arithmetic number, because the mean of its divisors is an integer number (38959644).

Almost surely, 2^149345279 is an apocalyptic number.

149345279 is a deficient number, since it is larger than the sum of its proper divisors (6493297).

149345279 is an equidigital number, since it uses as much as digits as its factorization.

149345279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6493296.

The product of its digits is 272160, while the sum is 44.

The square root of 149345279 is about 12220.6906105997. The cubic root of 149345279 is about 530.5551072504. Note that the first 3 decimals are identical.

The spelling of 149345279 in words is "one hundred forty-nine million, three hundred forty-five thousand, two hundred seventy-nine".