149319215 has 16 divisors (see below), whose sum is σ = 182733408. Its totient is φ = 117106176.

The previous prime is 149319193. The next prime is 149319223. The reversal of 149319215 is 512913941.

149319215 = T₃₀₄ + T₃₀₅ + ... + T₉₇₃.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 149319215 - 2⁸ = 149318959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77099 + ... + 79011.

It is an arithmetic number, because the mean of its divisors is an integer number (11420838).

Almost surely, 2^149319215 is an apocalyptic number.

149319215 is a deficient number, since it is larger than the sum of its proper divisors (33414193).

149319215 is a wasteful number, since it uses less digits than its factorization.

149319215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2218.

The product of its digits is 9720, while the sum is 35.

The square root of 149319215 is about 12219.6241758902. The cubic root of 149319215 is about 530.5242409854.

The spelling of 149319215 in words is "one hundred forty-nine million, three hundred nineteen thousand, two hundred fifteen".