149683319 has 4 divisors (see below), whose sum is σ = 151226544. Its totient is φ = 148140096.

The previous prime is 149683291. The next prime is 149683357. The reversal of 149683319 is 913386941.

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 149683319 - 2¹² = 149679223 is a prime.

It is a super-2 number, since 2×149683319² = 44810191973711522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 149683319.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149683399) 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 3 ways as a sum of consecutive naturals, for example, 771467 + ... + 771660.

It is an arithmetic number, because the mean of its divisors is an integer number (37806636).

Almost surely, 2^149683319 is an apocalyptic number.

149683319 is a deficient number, since it is larger than the sum of its proper divisors (1543225).

149683319 is an equidigital number, since it uses as much as digits as its factorization.

149683319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543224.

The product of its digits is 139968, while the sum is 44.

The square root of 149683319 is about 12234.5134353598. The cubic root of 149683319 is about 530.9551058355.

The spelling of 149683319 in words is "one hundred forty-nine million, six hundred eighty-three thousand, three hundred nineteen".