2126251 has 8 divisors (see below), whose sum is σ = 2218320. Its totient is φ = 2035488.

The previous prime is 2126249. The next prime is 2126269. The reversal of 2126251 is 1526212.

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

It is a cyclic number.

It is not a de Polignac number, because 2126251 - 2¹ = 2126249 is a prime.

It is a super-3 number, since 3×2126251³ = 28837980733392573753, which contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2126351) 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, 4320 + ... + 4786.

It is an arithmetic number, because the mean of its divisors is an integer number (277290).

2^2126251 is an apocalyptic number.

2126251 is a deficient number, since it is larger than the sum of its proper divisors (92069).

2126251 is a wasteful number, since it uses less digits than its factorization.

2126251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653.

The product of its digits is 240, while the sum is 19.

The square root of 2126251 is about 1458.1670000381. The cubic root of 2126251 is about 128.5893033937.

It can be divided in two parts, 2 and 126251, that added together give a triangular number (126253 = T₅₀₂).

The spelling of 2126251 in words is "two million, one hundred twenty-six thousand, two hundred fifty-one".