2521123 has 8 divisors (see below), whose sum is σ = 2761920. Its totient is φ = 2282280.

The previous prime is 2521111. The next prime is 2521147. The reversal of 2521123 is 3211252.

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

It is not a de Polignac number, because 2521123 - 2⁹ = 2520611 is a prime.

It is a super-2 number, since 2×2521123² = 12712122362258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2521097 and 2521106.

It is not an unprimeable number, because it can be changed into a prime (2521153) 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, 4336 + ... + 4882.

It is an arithmetic number, because the mean of its divisors is an integer number (345240).

2^2521123 is an apocalyptic number.

2521123 is a deficient number, since it is larger than the sum of its proper divisors (240797).

2521123 is a wasteful number, since it uses less digits than its factorization.

2521123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977.

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

The square root of 2521123 is about 1587.8044589936. The cubic root of 2521123 is about 136.1020535907.

Adding to 2521123 its reverse (3211252), we get a palindrome (5732375).

It can be divided in two parts, 2 and 521123, that added together give a palindrome (521125).

The spelling of 2521123 in words is "two million, five hundred twenty-one thousand, one hundred twenty-three".