149049555 has 16 divisors (see below), whose sum is σ = 244296864. Its totient is φ = 77553920.

The previous prime is 149049553. The next prime is 149049587. The reversal of 149049555 is 555940941.

It is not a de Polignac number, because 149049555 - 2¹ = 149049553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149049553) 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, 120564 + ... + 121793.

It is an arithmetic number, because the mean of its divisors is an integer number (15268554).

Almost surely, 2^149049555 is an apocalyptic number.

149049555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

149049555 is a deficient number, since it is larger than the sum of its proper divisors (95247309).

149049555 is a wasteful number, since it uses less digits than its factorization.

149049555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242406.

The product of its (nonzero) digits is 162000, while the sum is 42.

The square root of 149049555 is about 12208.5852988788. The cubic root of 149049555 is about 530.2046853882.

The spelling of 149049555 in words is "one hundred forty-nine million, forty-nine thousand, five hundred fifty-five".