149275699 has 4 divisors (see below), whose sum is σ = 149449536. Its totient is φ = 149101864.

The previous prime is 149275697. The next prime is 149275717. The reversal of 149275699 is 996572941.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 149275699 - 2¹ = 149275697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149275697) 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 3 ways as a sum of consecutive naturals, for example, 85624 + ... + 87349.

It is an arithmetic number, because the mean of its divisors is an integer number (37362384).

Almost surely, 2^149275699 is an apocalyptic number.

149275699 is a deficient number, since it is larger than the sum of its proper divisors (173837).

149275699 is an equidigital number, since it uses as much as digits as its factorization.

149275699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173836.

The product of its digits is 1224720, while the sum is 52.

The square root of 149275699 is about 12217.8434676501. The cubic root of 149275699 is about 530.4726992020.

The spelling of 149275699 in words is "one hundred forty-nine million, two hundred seventy-five thousand, six hundred ninety-nine".