5145665451 has 16 divisors (see below), whose sum is σ = 7335005184. Its totient is φ = 3197303424.

The previous prime is 5145665419. The next prime is 5145665509. The reversal of 5145665451 is 1545665415.

It is not a de Polignac number, because 5145665451 - 2⁵ = 5145665419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5145663451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 484531 + ... + 495036.

It is an arithmetic number, because the mean of its divisors is an integer number (458437824).

Almost surely, 2^5145665451 is an apocalyptic number.

5145665451 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

5145665451 is a deficient number, since it is larger than the sum of its proper divisors (2189339733).

5145665451 is a wasteful number, since it uses less digits than its factorization.

5145665451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979690.

The product of its digits is 360000, while the sum is 42.

The square root of 5145665451 is about 71733.2938808751. The cubic root of 5145665451 is about 1726.4228770899.

The spelling of 5145665451 in words is "five billion, one hundred forty-five million, six hundred sixty-five thousand, four hundred fifty-one".