149105505 has 16 divisors (see below), whose sum is σ = 246265344. Its totient is φ = 76957440.

The previous prime is 149105497. The next prime is 149105531. The reversal of 149105505 is 505501941.

It is not a de Polignac number, because 149105505 - 2³ = 149105497 is a prime.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 159864 + ... + 160793.

It is an arithmetic number, because the mean of its divisors is an integer number (15391584).

Almost surely, 2^149105505 is an apocalyptic number.

149105505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

149105505 is a deficient number, since it is larger than the sum of its proper divisors (97159839).

149105505 is a wasteful number, since it uses less digits than its factorization.

149105505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320696.

The product of its (nonzero) digits is 4500, while the sum is 30.

The square root of 149105505 is about 12210.8765041663. The cubic root of 149105505 is about 530.2710195705.

The spelling of 149105505 in words is "one hundred forty-nine million, one hundred five thousand, five hundred five".