149393915 has 8 divisors (see below), whose sum is σ = 195570288. Its totient is φ = 108650080.

The previous prime is 149393891. The next prime is 149393917. The reversal of 149393915 is 519393941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 149393915 - 2⁸ = 149393659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149393917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1358072 + ... + 1358181.

It is an arithmetic number, because the mean of its divisors is an integer number (24446286).

Almost surely, 2^149393915 is an apocalyptic number.

149393915 is a deficient number, since it is larger than the sum of its proper divisors (46176373).

149393915 is a wasteful number, since it uses less digits than its factorization.

149393915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2716269.

The product of its digits is 131220, while the sum is 44.

The square root of 149393915 is about 12222.6803525250. The cubic root of 149393915 is about 530.6126947812.

The spelling of 149393915 in words is "one hundred forty-nine million, three hundred ninety-three thousand, nine hundred fifteen".