7229547445 has 4 divisors (see below), whose sum is σ = 8675456940. Its totient is φ = 5783637952.

The previous prime is 7229547433. The next prime is 7229547467. The reversal of 7229547445 is 5447459227.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5447459227 = 7 ⋅778208461.

It can be written as a sum of positive squares in 2 ways, for example, as 3248316036 + 3981231409 = 56994^2 + 63097^2 .

It is a cyclic number.

It is not a de Polignac number, because 7229547445 - 2³¹ = 5082063797 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, 722954740 + ... + 722954749.

It is an arithmetic number, because the mean of its divisors is an integer number (2168864235).

Almost surely, 2^7229547445 is an apocalyptic number.

It is an amenable number.

7229547445 is a deficient number, since it is larger than the sum of its proper divisors (1445909495).

7229547445 is a wasteful number, since it uses less digits than its factorization.

7229547445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445909494.

The product of its digits is 2822400, while the sum is 49.

The square root of 7229547445 is about 85026.7454687053. The cubic root of 7229547445 is about 1933.6166219014.

The spelling of 7229547445 in words is "seven billion, two hundred twenty-nine million, five hundred forty-seven thousand, four hundred forty-five".