2451457 has 4 divisors (see below), whose sum is σ = 2536020. Its totient is φ = 2366896.

The previous prime is 2451443. The next prime is 2451461. The reversal of 2451457 is 7541542.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 732736 + 1718721 = 856^2 + 1311^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2451457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2451467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42238 + ... + 42295.

It is an arithmetic number, because the mean of its divisors is an integer number (634005).

It is a Proth number, since it is equal to 1197 ⋅ 2¹¹ + 1 and 1197 < 2¹¹.

2^2451457 is an apocalyptic number.

It is an amenable number.

2451457 is a deficient number, since it is larger than the sum of its proper divisors (84563).

2451457 is an equidigital number, since it uses as much as digits as its factorization.

2451457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84562.

The product of its digits is 5600, while the sum is 28.

The square root of 2451457 is about 1565.7129366522. The cubic root of 2451457 is about 134.8366932487.

Adding to 2451457 its reverse (7541542), we get a palindrome (9992999).

The spelling of 2451457 in words is "two million, four hundred fifty-one thousand, four hundred fifty-seven".