2172136 has 8 divisors (see below), whose sum is σ = 4072770. Its totient is φ = 1086064.

The previous prime is 2172113. The next prime is 2172151. The reversal of 2172136 is 6312712.

It can be written as a sum of positive squares in only one way, i.e., 2160900 + 11236 = 1470^2 + 106^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135751 + ... + 135766.

2^2172136 is an apocalyptic number.

It is an amenable number.

2172136 is a deficient number, since it is larger than the sum of its proper divisors (1900634).

2172136 is a wasteful number, since it uses less digits than its factorization.

2172136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271523 (or 271519 counting only the distinct ones).

The product of its digits is 504, while the sum is 22.

The square root of 2172136 is about 1473.8168135830. The cubic root of 2172136 is about 129.5077240316.

Adding to 2172136 its reverse (6312712), we get a palindrome (8484848).

The spelling of 2172136 in words is "two million, one hundred seventy-two thousand, one hundred thirty-six".