2172536 has 16 divisors (see below), whose sum is σ = 4288200. Its totient is φ = 1029024.

The previous prime is 2172497. The next prime is 2172539. The reversal of 2172536 is 6352712.

It is a d-powerful number, because it can be written as 2¹³ + 1 + 7 + 2¹⁵ + 5⁹ + 3¹¹ + 6⁴ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2172539) 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, 6995 + ... + 7298.

2^2172536 is an apocalyptic number.

It is an amenable number.

2172536 is a deficient number, since it is larger than the sum of its proper divisors (2115664).

2172536 is a wasteful number, since it uses less digits than its factorization.

2172536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14318 (or 14314 counting only the distinct ones).

The product of its digits is 2520, while the sum is 26.

The square root of 2172536 is about 1473.9525094113. The cubic root of 2172536 is about 129.5156731824.

The spelling of 2172536 in words is "two million, one hundred seventy-two thousand, five hundred thirty-six".