149271379 has 2 divisors, whose sum is σ = 149271380. Its totient is φ = 149271378.

The previous prime is 149271347. The next prime is 149271383. The reversal of 149271379 is 973172941.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 149271379 - 2⁵ = 149271347 is a prime.

It is not a weakly prime, because it can be changed into another prime (149277379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74635689 + 74635690.

It is an arithmetic number, because the mean of its divisors is an integer number (74635690).

Almost surely, 2^149271379 is an apocalyptic number.

149271379 is a deficient number, since it is larger than the sum of its proper divisors (1).

149271379 is an equidigital number, since it uses as much as digits as its factorization.

149271379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 95256, while the sum is 43.

The square root of 149271379 is about 12217.6666757610. Note that the first 4 decimals coincide. The cubic root of 149271379 is about 530.4675819053.

The spelling of 149271379 in words is "one hundred forty-nine million, two hundred seventy-one thousand, three hundred seventy-nine".