2145836276 has 6 divisors (see below), whose sum is σ = 3755213490. Its totient is φ = 1072918136.

The previous prime is 2145836249. The next prime is 2145836293. The reversal of 2145836276 is 6726385412.

It can be written as a sum of positive squares in only one way, i.e., 2141468176 + 4368100 = 46276^2 + 2090^2 .

It is a super-2 number, since 2×2145836276² = 9209226646795096352, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268229531 + ... + 268229538.

It is an arithmetic number, because the mean of its divisors is an integer number (625868915).

Almost surely, 2^2145836276 is an apocalyptic number.

It is an amenable number.

2145836276 is a deficient number, since it is larger than the sum of its proper divisors (1609377214).

2145836276 is a wasteful number, since it uses less digits than its factorization.

2145836276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536459073 (or 536459071 counting only the distinct ones).

The product of its digits is 483840, while the sum is 44.

The square root of 2145836276 is about 46323.1721279966. The cubic root of 2145836276 is about 1289.8291695344.

The spelling of 2145836276 in words is "two billion, one hundred forty-five million, eight hundred thirty-six thousand, two hundred seventy-six".