5121320454 has 48 divisors (see below), whose sum is σ = 11295067680. Its totient is φ = 1676693760.

The previous prime is 5121320447. The next prime is 5121320467. The reversal of 5121320454 is 4540231215.

It is a super-2 number, since 2×5121320454² = 52455846385117532232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 336334 + ... + 351230.

It is an arithmetic number, because the mean of its divisors is an integer number (235313910).

Almost surely, 2^5121320454 is an apocalyptic number.

5121320454 is an abundant number, since it is smaller than the sum of its proper divisors (6173747226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5121320454 is a wasteful number, since it uses less digits than its factorization.

5121320454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15245 (or 15242 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 5121320454 is about 71563.4016379881. The cubic root of 5121320454 is about 1723.6959076181.

Adding to 5121320454 its reverse (4540231215), we get a palindrome (9661551669).

The spelling of 5121320454 in words is "five billion, one hundred twenty-one million, three hundred twenty thousand, four hundred fifty-four".