149299723 has 8 divisors (see below), whose sum is σ = 152517600. Its totient is φ = 146112960.

The previous prime is 149299721. The next prime is 149299727. The reversal of 149299723 is 327992941.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 149299723 - 2¹ = 149299721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149299721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2053 + ... + 17401.

It is an arithmetic number, because the mean of its divisors is an integer number (19064700).

Almost surely, 2^149299723 is an apocalyptic number.

149299723 is a deficient number, since it is larger than the sum of its proper divisors (3217877).

149299723 is a wasteful number, since it uses less digits than its factorization.

149299723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15557.

The product of its digits is 244944, while the sum is 46.

The square root of 149299723 is about 12218.8265803227. The cubic root of 149299723 is about 530.5011552571.

The spelling of 149299723 in words is "one hundred forty-nine million, two hundred ninety-nine thousand, seven hundred twenty-three".