2452400145 has 80 divisors (see below), whose sum is σ = 4862660880. Its totient is φ = 1174611456.

The previous prime is 2452400143. The next prime is 2452400189. The reversal of 2452400145 is 5410042542.

2452400145 is a `hidden beast` number, since 245 + 2 + 400 + 14 + 5 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 195105024 + 2257295121 = 13968^2 + 47511^2 .

It is not a de Polignac number, because 2452400145 - 2¹ = 2452400143 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2452400143) by changing a digit.

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 79 ways as a sum of consecutive naturals, for example, 188511 + ... + 201099.

It is an arithmetic number, because the mean of its divisors is an integer number (60783261).

Almost surely, 2^2452400145 is an apocalyptic number.

It is an amenable number.

2452400145 is a deficient number, since it is larger than the sum of its proper divisors (2410260735).

2452400145 is a wasteful number, since it uses less digits than its factorization.

2452400145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12656 (or 12647 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 2452400145 is about 49521.7138738150. The cubic root of 2452400145 is about 1348.5398286432.

Adding to 2452400145 its reverse (5410042542), we get a palindrome (7862442687).

The spelling of 2452400145 in words is "two billion, four hundred fifty-two million, four hundred thousand, one hundred forty-five".