915096221 has 8 divisors (see below), whose sum is σ = 1037356320. Its totient is φ = 800245872.

The previous prime is 915096211. The next prime is 915096253. The reversal of 915096221 is 122690519.

915096221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-915096221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (915096211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1852175 + ... + 1852668.

It is an arithmetic number, because the mean of its divisors is an integer number (129669540).

Almost surely, 2^915096221 is an apocalyptic number.

It is an amenable number.

915096221 is a deficient number, since it is larger than the sum of its proper divisors (122260099).

915096221 is a wasteful number, since it uses less digits than its factorization.

915096221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3704875.

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

The square root of 915096221 is about 30250.5573667660. The cubic root of 915096221 is about 970.8577176255.

It can be divided in two parts, 915096 and 221, that multiplied together give a triangular number (202236216 = T₂₀₁₁₁).

The spelling of 915096221 in words is "nine hundred fifteen million, ninety-six thousand, two hundred twenty-one".