149272499 has 4 divisors (see below), whose sum is σ = 149297064. Its totient is φ = 149247936.

The previous prime is 149272489. The next prime is 149272511. The reversal of 149272499 is 994272941.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 149272499 - 2²⁰ = 148223923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149272489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4259 + ... + 17795.

It is an arithmetic number, because the mean of its divisors is an integer number (37324266).

Almost surely, 2^149272499 is an apocalyptic number.

149272499 is a deficient number, since it is larger than the sum of its proper divisors (24565).

149272499 is a wasteful number, since it uses less digits than its factorization.

149272499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24564.

The product of its digits is 326592, while the sum is 47.

The square root of 149272499 is about 12217.7125109408. The cubic root of 149272499 is about 530.4689086213.

The spelling of 149272499 in words is "one hundred forty-nine million, two hundred seventy-two thousand, four hundred ninety-nine".