149923319 has 16 divisors (see below), whose sum is σ = 194234880. Its totient is φ = 112376160.

The previous prime is 149923313. The next prime is 149923321. The reversal of 149923319 is 913329941.

It is not a de Polignac number, because 149923319 - 2⁴ = 149923303 is a prime.

It is a super-2 number, since 2×149923319² = 44954003159951522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149923313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41627 + ... + 45084.

It is an arithmetic number, because the mean of its divisors is an integer number (12139680).

Almost surely, 2^149923319 is an apocalyptic number.

149923319 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

149923319 is a deficient number, since it is larger than the sum of its proper divisors (44311561).

149923319 is a wasteful number, since it uses less digits than its factorization.

149923319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86750.

The product of its digits is 52488, while the sum is 41.

The square root of 149923319 is about 12244.3178250158. The cubic root of 149923319 is about 531.2387294679.

The spelling of 149923319 in words is "one hundred forty-nine million, nine hundred twenty-three thousand, three hundred nineteen".