2150649 has 12 divisors (see below), whose sum is σ = 3124836. Its totient is φ = 1425312.

The previous prime is 2150641. The next prime is 2150651. The reversal of 2150649 is 9460512.

2150649 is a `hidden beast` number, since 2 + 15 + 0 + 649 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1140624 + 1010025 = 1068^2 + 1005^2 .

It is not a de Polignac number, because 2150649 - 2³ = 2150641 is a prime.

It is a super-2 number, since 2×2150649² = 9250582242402, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2150641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1167 + ... + 2379.

It is an arithmetic number, because the mean of its divisors is an integer number (260403).

2^2150649 is an apocalyptic number.

It is an amenable number.

2150649 is a deficient number, since it is larger than the sum of its proper divisors (974187).

2150649 is a wasteful number, since it uses less digits than its factorization.

2150649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416 (or 1413 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 2150649 is about 1466.5091203262. The cubic root of 2150649 is about 129.0792734308.

The spelling of 2150649 in words is "two million, one hundred fifty thousand, six hundred forty-nine".