915149418 has 16 divisors (see below), whose sum is σ = 1831415520. Its totient is φ = 304863696.

The previous prime is 915149399. The next prime is 915149429. The reversal of 915149418 is 814941519.

It is a self number, because there is not a number n which added to its sum of digits gives 915149418.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 35680 + ... + 55707.

It is an arithmetic number, because the mean of its divisors is an integer number (114463470).

Almost surely, 2^915149418 is an apocalyptic number.

915149418 is an abundant number, since it is smaller than the sum of its proper divisors (916266102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

915149418 is a wasteful number, since it uses less digits than its factorization.

915149418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93061.

The product of its digits is 51840, while the sum is 42.

The square root of 915149418 is about 30251.4366270430. The cubic root of 915149418 is about 970.8765301162.

The spelling of 915149418 in words is "nine hundred fifteen million, one hundred forty-nine thousand, four hundred eighteen".