2451123 has 6 divisors (see below), whose sum is σ = 3540524. Its totient is φ = 1634076.

The previous prime is 2451101. The next prime is 2451143. The reversal of 2451123 is 3211542.

It is not a de Polignac number, because 2451123 - 2¹⁴ = 2434739 is a prime.

It is a super-2 number, since 2×2451123² = 12016007922258, which contains 22 as substring.

It is a Duffinian number.

2451123 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2451096 and 2451105.

It is not an unprimeable number, because it can be changed into a prime (2451143) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 136165 + ... + 136182.

2^2451123 is an apocalyptic number.

2451123 is a deficient number, since it is larger than the sum of its proper divisors (1089401).

2451123 is a wasteful number, since it uses less digits than its factorization.

2451123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272353 (or 272350 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 2451123 is about 1565.6062723431. The cubic root of 2451123 is about 134.8305693394.

Adding to 2451123 its reverse (3211542), we get a palindrome (5662665).

The spelling of 2451123 in words is "two million, four hundred fifty-one thousand, one hundred twenty-three".