149277309 has 16 divisors (see below), whose sum is σ = 206129664. Its totient is φ = 96033600.

The previous prime is 149277299. The next prime is 149277313. The reversal of 149277309 is 903772941.

It is not a de Polignac number, because 149277309 - 2⁹ = 149276797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149277329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2004 + ... + 17394.

It is an arithmetic number, because the mean of its divisors is an integer number (12883104).

Almost surely, 2^149277309 is an apocalyptic number.

It is an amenable number.

149277309 is a deficient number, since it is larger than the sum of its proper divisors (56852355).

149277309 is a wasteful number, since it uses less digits than its factorization.

149277309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15508.

The product of its (nonzero) digits is 95256, while the sum is 42.

The square root of 149277309 is about 12217.9093547137. The cubic root of 149277309 is about 530.4746063175.

The spelling of 149277309 in words is "one hundred forty-nine million, two hundred seventy-seven thousand, three hundred nine".