2523121 has 8 divisors (see below), whose sum is σ = 2624000. Its totient is φ = 2423520.

The previous prime is 2523107. The next prime is 2523133. The reversal of 2523121 is 1213252.

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 2523121 - 2¹¹ = 2521073 is a prime.

It is a super-2 number, since 2×2523121² = 12732279161282, which contains 22 as substring.

It is a Duffinian number.

2523121 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2523095 and 2523104.

It is not an unprimeable number, because it can be changed into a prime (2523151) 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, 5965 + ... + 6373.

It is an arithmetic number, because the mean of its divisors is an integer number (328000).

2^2523121 is an apocalyptic number.

It is an amenable number.

2523121 is a deficient number, since it is larger than the sum of its proper divisors (100879).

2523121 is a wasteful number, since it uses less digits than its factorization.

2523121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639.

The product of its digits is 120, while the sum is 16.

The square root of 2523121 is about 1588.4335050609. The cubic root of 2523121 is about 136.1379979033.

Adding to 2523121 its reverse (1213252), we get a palindrome (3736373).

It can be divided in two parts, 25231 and 21, that added together give a palindrome (25252).

The spelling of 2523121 in words is "two million, five hundred twenty-three thousand, one hundred twenty-one".