2125281 has 8 divisors (see below), whose sum is σ = 2854944. Its totient is φ = 1406240.

The previous prime is 2125273. The next prime is 2125313. The reversal of 2125281 is 1825212.

It is a happy number.

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 2125281 - 2³ = 2125273 is a prime.

It is a super-2 number, since 2×2125281² = 9033638657922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2125181) 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, 2175 + ... + 2996.

It is an arithmetic number, because the mean of its divisors is an integer number (356868).

2^2125281 is an apocalyptic number.

It is an amenable number.

2125281 is a deficient number, since it is larger than the sum of its proper divisors (729663).

2125281 is a wasteful number, since it uses less digits than its factorization.

2125281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5311.

The product of its digits is 320, while the sum is 21.

The square root of 2125281 is about 1457.8343527301. The cubic root of 2125281 is about 128.5697461861.

The spelling of 2125281 in words is "two million, one hundred twenty-five thousand, two hundred eighty-one".