5120400145 has 16 divisors (see below), whose sum is σ = 7032918528. Its totient is φ = 3505803840.

The previous prime is 5120400143. The next prime is 5120400151. The reversal of 5120400145 is 5410040215.

It is not a de Polignac number, because 5120400145 - 2¹ = 5120400143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5120400143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87529 + ... + 133798.

It is an arithmetic number, because the mean of its divisors is an integer number (439557408).

Almost surely, 2^5120400145 is an apocalyptic number.

It is an amenable number.

5120400145 is a deficient number, since it is larger than the sum of its proper divisors (1912518383).

5120400145 is a wasteful number, since it uses less digits than its factorization.

5120400145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222000.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 5120400145 is about 71556.9713235545. The cubic root of 5120400145 is about 1723.5926511824.

The spelling of 5120400145 in words is "five billion, one hundred twenty million, four hundred thousand, one hundred forty-five".