11945615 has 16 divisors (see below), whose sum is σ = 16004736. Its totient is φ = 8484000.

The previous prime is 11945603. The next prime is 11945621. The reversal of 11945615 is 51654911.

It is not a de Polignac number, because 11945615 - 2⁴ = 11945599 is a prime.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 161 + ... + 4890.

It is an arithmetic number, because the mean of its divisors is an integer number (1000296).

Almost surely, 2^11945615 is an apocalyptic number.

11945615 is a deficient number, since it is larger than the sum of its proper divisors (4059121).

11945615 is a wasteful number, since it uses less digits than its factorization.

11945615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5110.

The product of its digits is 5400, while the sum is 32.

The square root of 11945615 is about 3456.2429023435. The cubic root of 11945615 is about 228.5964620089.

The spelling of 11945615 in words is "eleven million, nine hundred forty-five thousand, six hundred fifteen".