2152645 has 8 divisors (see below), whose sum is σ = 2818080. Its totient is φ = 1565520.

The previous prime is 2152637. The next prime is 2152663. The reversal of 2152645 is 5462512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2152645 - 2³ = 2152637 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19515 + ... + 19624.

It is an arithmetic number, because the mean of its divisors is an integer number (352260).

2^2152645 is an apocalyptic number.

It is an amenable number.

2152645 is a deficient number, since it is larger than the sum of its proper divisors (665435).

2152645 is a wasteful number, since it uses less digits than its factorization.

2152645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39155.

The product of its digits is 2400, while the sum is 25.

The square root of 2152645 is about 1467.1894901477. The cubic root of 2152645 is about 129.1191935612.

The spelling of 2152645 in words is "two million, one hundred fifty-two thousand, six hundred forty-five".