149254279 has 2 divisors, whose sum is σ = 149254280. Its totient is φ = 149254278.

The previous prime is 149254219. The next prime is 149254297. The reversal of 149254279 is 972452941.

Together with next prime (149254297) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 149254279 - 2¹⁵ = 149221511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149254219) 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, 74627139 + 74627140.

It is an arithmetic number, because the mean of its divisors is an integer number (74627140).

Almost surely, 2^149254279 is an apocalyptic number.

149254279 is a deficient number, since it is larger than the sum of its proper divisors (1).

149254279 is an equidigital number, since it uses as much as digits as its factorization.

149254279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 43.

The square root of 149254279 is about 12216.9668494271. The cubic root of 149254279 is about 530.4473249698.

The spelling of 149254279 in words is "one hundred forty-nine million, two hundred fifty-four thousand, two hundred seventy-nine".