2115745 has 8 divisors (see below), whose sum is σ = 2672640. Its totient is φ = 1603440.

The previous prime is 2115727. The next prime is 2115749. The reversal of 2115745 is 5475112.

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

It is not a de Polignac number, because 2115745 - 2⁵ = 2115713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2115749) 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, 11041 + ... + 11230.

It is an arithmetic number, because the mean of its divisors is an integer number (334080).

2^2115745 is an apocalyptic number.

It is an amenable number.

2115745 is a deficient number, since it is larger than the sum of its proper divisors (556895).

2115745 is a wasteful number, since it uses less digits than its factorization.

2115745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22295.

The product of its digits is 1400, while the sum is 25.

The square root of 2115745 is about 1454.5600709493. The cubic root of 2115745 is about 128.3771631179.

The spelling of 2115745 in words is "two million, one hundred fifteen thousand, seven hundred forty-five".