451240513 has 8 divisors (see below), whose sum is σ = 454970880. Its totient is φ = 447522720.

The previous prime is 451240501. The next prime is 451240523. The reversal of 451240513 is 315042154.

It is a happy number.

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 451240513 - 2⁹ = 451240001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (451240523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77173 + ... + 82813.

It is an arithmetic number, because the mean of its divisors is an integer number (56871360).

Almost surely, 2^451240513 is an apocalyptic number.

It is an amenable number.

451240513 is a deficient number, since it is larger than the sum of its proper divisors (3730367).

451240513 is a wasteful number, since it uses less digits than its factorization.

451240513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6287.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 451240513 is about 21242.4224842648. The cubic root of 451240513 is about 767.0129469327.

Adding to 451240513 its reverse (315042154), we get a palindrome (766282667).

The spelling of 451240513 in words is "four hundred fifty-one million, two hundred forty thousand, five hundred thirteen".