2145964 has 6 divisors (see below), whose sum is σ = 3755444. Its totient is φ = 1072980.

The previous prime is 2145953. The next prime is 2145977. The reversal of 2145964 is 4695412.

2145964 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2145964² = 9210322978592, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268242 + ... + 268249.

2^2145964 is an apocalyptic number.

It is an amenable number.

2145964 is a deficient number, since it is larger than the sum of its proper divisors (1609480).

2145964 is a wasteful number, since it uses less digits than its factorization.

2145964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536495 (or 536493 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 2145964 is about 1464.9109187934. The cubic root of 2145964 is about 128.9854760004.

The spelling of 2145964 in words is "two million, one hundred forty-five thousand, nine hundred sixty-four".