2153770 has 16 divisors (see below), whose sum is σ = 3982248. Its totient is φ = 838080.

The previous prime is 2153737. The next prime is 2153773. The reversal of 2153770 is 773512.

It can be written as a sum of positive squares in 4 ways, for example, as 2152089 + 1681 = 1467^2 + 41^2 .

It is not an unprimeable number, because it can be changed into a prime (2153773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2541 + ... + 3280.

2^2153770 is an apocalyptic number.

2153770 is a deficient number, since it is larger than the sum of its proper divisors (1828478).

2153770 is a wasteful number, since it uses less digits than its factorization.

2153770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5865.

The product of its (nonzero) digits is 1470, while the sum is 25.

The square root of 2153770 is about 1467.5728261316. The cubic root of 2153770 is about 129.1416827618.

The spelling of 2153770 in words is "two million, one hundred fifty-three thousand, seven hundred seventy".