2145436 has 12 divisors (see below), whose sum is σ = 3770928. Its totient is φ = 1068032.

The previous prime is 2145433. The next prime is 2145439. The reversal of 2145436 is 6345412.

It is an interprime number because it is at equal distance from previous prime (2145433) and next prime (2145439).

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 2145436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16 + ... + 2071.

It is an arithmetic number, because the mean of its divisors is an integer number (314244).

2^2145436 is an apocalyptic number.

It is an amenable number.

2145436 is a deficient number, since it is larger than the sum of its proper divisors (1625492).

2145436 is a wasteful number, since it uses less digits than its factorization.

2145436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2348 (or 2346 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 2145436 is about 1464.7306919704. The cubic root of 2145436 is about 128.9748964632.

The spelling of 2145436 in words is "two million, one hundred forty-five thousand, four hundred thirty-six".