2115772 has 12 divisors (see below), whose sum is σ = 3789016. Its totient is φ = 1033200.

The previous prime is 2115767. The next prime is 2115787. The reversal of 2115772 is 2775112.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5979 + ... + 6322.

2^2115772 is an apocalyptic number.

2115772 is the 778-th centered heptagonal number.

It is an amenable number.

2115772 is a deficient number, since it is larger than the sum of its proper divisors (1673244).

2115772 is a wasteful number, since it uses less digits than its factorization.

2115772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12348 (or 12346 counting only the distinct ones).

The product of its digits is 980, while the sum is 25.

The square root of 2115772 is about 1454.5693520764. The cubic root of 2115772 is about 128.3777092091.

The spelling of 2115772 in words is "two million, one hundred fifteen thousand, seven hundred seventy-two".