7506223145 has 4 divisors (see below), whose sum is σ = 9007467780. Its totient is φ = 6004978512.

The previous prime is 7506223093. The next prime is 7506223169. The reversal of 7506223145 is 5413226057.

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 5813147536 + 1693075609 = 76244^2 + 41147^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7506223145 is a prime.

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, 750622310 + ... + 750622319.

It is an arithmetic number, because the mean of its divisors is an integer number (2251866945).

Almost surely, 2^7506223145 is an apocalyptic number.

It is an amenable number.

7506223145 is a deficient number, since it is larger than the sum of its proper divisors (1501244635).

7506223145 is a wasteful number, since it uses less digits than its factorization.

7506223145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1501244634.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 7506223145 is about 86638.4622728266. The cubic root of 7506223145 is about 1957.9750662228.

The spelling of 7506223145 in words is "seven billion, five hundred six million, two hundred twenty-three thousand, one hundred forty-five".