149481299 has 4 divisors (see below), whose sum is σ = 163070520. Its totient is φ = 135892080.

The previous prime is 149481281. The next prime is 149481307. The reversal of 149481299 is 992184941.

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 149481299 - 2¹² = 149477203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149481229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6794594 + ... + 6794615.

It is an arithmetic number, because the mean of its divisors is an integer number (40767630).

Almost surely, 2^149481299 is an apocalyptic number.

149481299 is a deficient number, since it is larger than the sum of its proper divisors (13589221).

149481299 is a wasteful number, since it uses less digits than its factorization.

149481299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13589220.

The product of its digits is 186624, while the sum is 47.

The square root of 149481299 is about 12226.2544959607. The cubic root of 149481299 is about 530.7161305476.

The spelling of 149481299 in words is "one hundred forty-nine million, four hundred eighty-one thousand, two hundred ninety-nine".