149819215 has 48 divisors (see below), whose sum is σ = 238557312. Its totient is φ = 89220096.

The previous prime is 149819213. The next prime is 149819239. The reversal of 149819215 is 512918941.

It is not a de Polignac number, because 149819215 - 2¹ = 149819213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149819213) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52762 + ... + 55528.

It is an arithmetic number, because the mean of its divisors is an integer number (4969944).

Almost surely, 2^149819215 is an apocalyptic number.

149819215 is a deficient number, since it is larger than the sum of its proper divisors (88738097).

149819215 is a wasteful number, since it uses less digits than its factorization.

149819215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2816 (or 2809 counting only the distinct ones).

The product of its digits is 25920, while the sum is 40.

The square root of 149819215 is about 12240.0659720444. The cubic root of 149819215 is about 531.1157401898.

The spelling of 149819215 in words is "one hundred forty-nine million, eight hundred nineteen thousand, two hundred fifteen".