4215170745 has 40 divisors (see below), whose sum is σ = 7659645576. Its totient is φ = 2217279744.

The previous prime is 4215170737. The next prime is 4215170779. The reversal of 4215170745 is 5470715124.

It can be written as a sum of positive squares in 4 ways, for example, as 273340089 + 3941830656 = 16533^2 + 62784^2 .

It is not a de Polignac number, because 4215170745 - 2³ = 4215170737 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 41722 + ... + 100851.

Almost surely, 2^4215170745 is an apocalyptic number.

4215170745 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4215170745 is a deficient number, since it is larger than the sum of its proper divisors (3444474831).

4215170745 is a wasteful number, since it uses less digits than its factorization.

4215170745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142663 (or 142654 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The square root of 4215170745 is about 64924.3463193893. The cubic root of 4215170745 is about 1615.3689240156.

Adding to 4215170745 its reverse (5470715124), we get a palindrome (9685885869).

It can be divided in two parts, 42151 and 70745, that added together give a square (112896 = 336²).

The spelling of 4215170745 in words is "four billion, two hundred fifteen million, one hundred seventy thousand, seven hundred forty-five".