2124279 has 16 divisors (see below), whose sum is σ = 3256800. Its totient is φ = 1366848.

The previous prime is 2124277. The next prime is 2124289. The reversal of 2124279 is 9724212.

It is not a de Polignac number, because 2124279 - 2¹ = 2124277 is a prime.

It is a super-2 number, since 2×2124279² = 9025122539682, 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 a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2124277) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 574 + ... + 2139.

It is an arithmetic number, because the mean of its divisors is an integer number (203550).

2^2124279 is an apocalyptic number.

2124279 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2124279 is a deficient number, since it is larger than the sum of its proper divisors (1132521).

2124279 is a wasteful number, since it uses less digits than its factorization.

2124279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2751 (or 2745 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 2124279 is about 1457.4906517710. The cubic root of 2124279 is about 128.5495375428.

It can be divided in two parts, 21242 and 79, that added together give a triangular number (21321 = T₂₀₆).

The spelling of 2124279 in words is "two million, one hundred twenty-four thousand, two hundred seventy-nine".