2487121 has 16 divisors (see below), whose sum is σ = 3098368. Its totient is φ = 1944000.

The previous prime is 2487113. The next prime is 2487137. The reversal of 2487121 is 1217842.

It is a happy number.

It is a 5-Lehmer number, since φ(2487121) divides (2487121-1)⁵.

It is a cyclic number.

It is not a de Polignac number, because 2487121 - 2³ = 2487113 is a prime.

2487121 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2487521) 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, 13651 + ... + 13831.

It is an arithmetic number, because the mean of its divisors is an integer number (193648).

2^2487121 is an apocalyptic number.

It is an amenable number.

2487121 is a deficient number, since it is larger than the sum of its proper divisors (611247).

2487121 is a wasteful number, since it uses less digits than its factorization.

2487121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352.

The product of its digits is 896, while the sum is 25.

The square root of 2487121 is about 1577.0608739044. The cubic root of 2487121 is about 135.4874195734.

The spelling of 2487121 in words is "two million, four hundred eighty-seven thousand, one hundred twenty-one".