7201273445 has 4 divisors (see below), whose sum is σ = 8641528140. Its totient is φ = 5761018752.

The previous prime is 7201273397. The next prime is 7201273451. The reversal of 7201273445 is 5443721027.

7201273445 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 4184407969 + 3016865476 = 64687^2 + 54926^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7201273445 is a prime.

It is a congruent number.

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, 720127340 + ... + 720127349.

It is an arithmetic number, because the mean of its divisors is an integer number (2160382035).

Almost surely, 2^7201273445 is an apocalyptic number.

It is an amenable number.

7201273445 is a deficient number, since it is larger than the sum of its proper divisors (1440254695).

7201273445 is a wasteful number, since it uses less digits than its factorization.

7201273445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1440254694.

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 7201273445 is about 84860.3172572434. The cubic root of 7201273445 is about 1931.0926048733.

The spelling of 7201273445 in words is "seven billion, two hundred one million, two hundred seventy-three thousand, four hundred forty-five".