4207531145 has 4 divisors (see below), whose sum is σ = 5049037380. Its totient is φ = 3366024912.

The previous prime is 4207531121. The next prime is 4207531189. The reversal of 4207531145 is 5411357024.

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 576384064 + 3631147081 = 24008^2 + 60259^2 .

It is a cyclic number.

It is not a de Polignac number, because 4207531145 - 2²⁸ = 3939095689 is a prime.

It is a super-2 number, since 2×4207531145² = 35406636672290022050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 420753110 + ... + 420753119.

It is an arithmetic number, because the mean of its divisors is an integer number (1262259345).

Almost surely, 2^4207531145 is an apocalyptic number.

It is an amenable number.

4207531145 is a deficient number, since it is larger than the sum of its proper divisors (841506235).

4207531145 is an equidigital number, since it uses as much as digits as its factorization.

4207531145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841506234.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 4207531145 is about 64865.4850055097. The cubic root of 4207531145 is about 1614.3924324971.

Adding to 4207531145 its reverse (5411357024), we get a palindrome (9618888169).

The spelling of 4207531145 in words is "four billion, two hundred seven million, five hundred thirty-one thousand, one hundred forty-five".