149200155 has 24 divisors (see below), whose sum is σ = 278508048. Its totient is φ = 73452096.

The previous prime is 149200151. The next prime is 149200193. The reversal of 149200155 is 551002941.

149200155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 149200155 - 2² = 149200151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149200151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 126937 + ... + 128106.

It is an arithmetic number, because the mean of its divisors is an integer number (11604502).

Almost surely, 2^149200155 is an apocalyptic number.

149200155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

149200155 is a deficient number, since it is larger than the sum of its proper divisors (129307893).

149200155 is a wasteful number, since it uses less digits than its factorization.

149200155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255067 (or 255064 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 149200155 is about 12214.7515324709. The cubic root of 149200155 is about 530.3831986072.

The spelling of 149200155 in words is "one hundred forty-nine million, two hundred thousand, one hundred fifty-five".