2791145 has 16 divisors (see below), whose sum is σ = 4053888. Its totient is φ = 1800960.

The previous prime is 2791141. The next prime is 2791181. The reversal of 2791145 is 5411972.

It is not a de Polignac number, because 2791145 - 2² = 2791141 is a prime.

It is a super-2 number, since 2×2791145² = 15580980822050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2791141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1751 + ... + 2940.

It is an arithmetic number, because the mean of its divisors is an integer number (253368).

2^2791145 is an apocalyptic number.

It is an amenable number.

2791145 is a deficient number, since it is larger than the sum of its proper divisors (1262743).

2791145 is a wasteful number, since it uses less digits than its factorization.

2791145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4720.

The product of its digits is 2520, while the sum is 29.

The square root of 2791145 is about 1670.6720204756. The cubic root of 2791145 is about 140.7972371886.

The spelling of 2791145 in words is "two million, seven hundred ninety-one thousand, one hundred forty-five".