6437013145 has 4 divisors (see below), whose sum is σ = 7724415780. Its totient is φ = 5149610512.

The previous prime is 6437013139. The next prime is 6437013223. The reversal of 6437013145 is 5413107346.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2754465289 + 3682547856 = 52483^2 + 60684^2 .

It is a cyclic number.

It is not a de Polignac number, because 6437013145 - 2⁵ = 6437013113 is a prime.

It is a super-3 number, since 3×6437013145³ (a number of 30 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6437013145.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 643701310 + ... + 643701319.

It is an arithmetic number, because the mean of its divisors is an integer number (1931103945).

Almost surely, 2^6437013145 is an apocalyptic number.

It is an amenable number.

6437013145 is a deficient number, since it is larger than the sum of its proper divisors (1287402635).

6437013145 is a wasteful number, since it uses less digits than its factorization.

6437013145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287402634.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 6437013145 is about 80230.9986538869. The cubic root of 6437013145 is about 1860.2078182448.

The spelling of 6437013145 in words is "six billion, four hundred thirty-seven million, thirteen thousand, one hundred forty-five".