149621319 has 6 divisors (see below), whose sum is σ = 216119696. Its totient is φ = 99747540.

The previous prime is 149621317. The next prime is 149621321. The reversal of 149621319 is 913126941.

It is a happy number.

149621319 is a `hidden beast` number, since 14 + 9 + 621 + 3 + 19 = 666.

It is an interprime number because it is at equal distance from previous prime (149621317) and next prime (149621321).

It is not a de Polignac number, because 149621319 - 2¹ = 149621317 is a prime.

It is a super-2 number, since 2×149621319² = 44773078198599522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149621317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8312287 + ... + 8312304.

Almost surely, 2^149621319 is an apocalyptic number.

149621319 is a deficient number, since it is larger than the sum of its proper divisors (66498377).

149621319 is a wasteful number, since it uses less digits than its factorization.

149621319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16624597 (or 16624594 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 149621319 is about 12231.9793574057. The cubic root of 149621319 is about 530.8817871273.

The spelling of 149621319 in words is "one hundred forty-nine million, six hundred twenty-one thousand, three hundred nineteen".