2152639 has 8 divisors (see below), whose sum is σ = 2263392. Its totient is φ = 2043360.

The previous prime is 2152637. The next prime is 2152663. The reversal of 2152639 is 9362512.

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

It is a cyclic number.

It is not a de Polignac number, because 2152639 - 2¹ = 2152637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152637) 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, 3709 + ... + 4249.

It is an arithmetic number, because the mean of its divisors is an integer number (282924).

2^2152639 is an apocalyptic number.

2152639 is a deficient number, since it is larger than the sum of its proper divisors (110753).

2152639 is a wasteful number, since it uses less digits than its factorization.

2152639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737.

The product of its digits is 3240, while the sum is 28.

The square root of 2152639 is about 1467.1874454207. The cubic root of 2152639 is about 129.1190735978.

The spelling of 2152639 in words is "two million, one hundred fifty-two thousand, six hundred thirty-nine".