149505699 has 16 divisors (see below), whose sum is σ = 239809280. Its totient is φ = 80935200.

The previous prime is 149505691. The next prime is 149505703. The reversal of 149505699 is 996505941.

It is not a de Polignac number, because 149505699 - 2³ = 149505691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149505691) by changing a digit.

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, 186952 + ... + 187749.

It is an arithmetic number, because the mean of its divisors is an integer number (14988080).

Almost surely, 2^149505699 is an apocalyptic number.

149505699 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

149505699 is a deficient number, since it is larger than the sum of its proper divisors (90303581).

149505699 is a wasteful number, since it uses less digits than its factorization.

149505699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374730.

The product of its (nonzero) digits is 437400, while the sum is 48.

The square root of 149505699 is about 12227.2523078572. The cubic root of 149505699 is about 530.7450054395.

The spelling of 149505699 in words is "one hundred forty-nine million, five hundred five thousand, six hundred ninety-nine".