2451481 has 8 divisors (see below), whose sum is σ = 2508800. Its totient is φ = 2395008.

The previous prime is 2451469. The next prime is 2451487. The reversal of 2451481 is 1841542.

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 2451481 - 2²¹ = 354329 is a prime.

It is a super-2 number, since 2×2451481² = 12019518186722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2451487) 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, 12220 + ... + 12418.

It is an arithmetic number, because the mean of its divisors is an integer number (313600).

2^2451481 is an apocalyptic number.

It is an amenable number.

2451481 is a deficient number, since it is larger than the sum of its proper divisors (57319).

2451481 is a wasteful number, since it uses less digits than its factorization.

2451481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423.

The product of its digits is 1280, while the sum is 25.

The square root of 2451481 is about 1565.7206008736. The cubic root of 2451481 is about 134.8371332686.

The spelling of 2451481 in words is "two million, four hundred fifty-one thousand, four hundred eighty-one".