2122949 has 8 divisors (see below), whose sum is σ = 2199288. Its totient is φ = 2047680.

The previous prime is 2122937. The next prime is 2122957. The reversal of 2122949 is 9492212.

It can be written as a sum of positive squares in 4 ways, for example, as 100 + 2122849 = 10^2 + 1457^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2122949 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 (2122979) 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, 6539 + ... + 6855.

It is an arithmetic number, because the mean of its divisors is an integer number (274911).

2^2122949 is an apocalyptic number.

It is an amenable number.

2122949 is a deficient number, since it is larger than the sum of its proper divisors (76339).

2122949 is a wasteful number, since it uses less digits than its factorization.

2122949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535.

The product of its digits is 2592, while the sum is 29.

The square root of 2122949 is about 1457.0343166858. The cubic root of 2122949 is about 128.5227038769.

The spelling of 2122949 in words is "two million, one hundred twenty-two thousand, nine hundred forty-nine".