4145506537 has 4 divisors (see below), whose sum is σ = 4147716996. Its totient is φ = 4143296080.

The previous prime is 4145506517. The next prime is 4145506543. The reversal of 4145506537 is 7356055414.

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 2072434576 + 2073071961 = 45524^2 + 45531^2 .

It is a cyclic number.

It is not a de Polignac number, because 4145506537 - 2¹⁹ = 4144982249 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4145506537.

It is not an unprimeable number, because it can be changed into a prime (4145506517) 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 3 ways as a sum of consecutive naturals, for example, 1102414 + ... + 1106167.

It is an arithmetic number, because the mean of its divisors is an integer number (1036929249).

Almost surely, 2^4145506537 is an apocalyptic number.

It is an amenable number.

4145506537 is a deficient number, since it is larger than the sum of its proper divisors (2210459).

4145506537 is a wasteful number, since it uses less digits than its factorization.

4145506537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2210458.

The product of its (nonzero) digits is 252000, while the sum is 40.

The square root of 4145506537 is about 64385.6081512010. The cubic root of 4145506537 is about 1606.4203660242.

The spelling of 4145506537 in words is "four billion, one hundred forty-five million, five hundred six thousand, five hundred thirty-seven".