7347123545 has 4 divisors (see below), whose sum is σ = 8816548260. Its totient is φ = 5877698832.

The previous prime is 7347123533. The next prime is 7347123571. The reversal of 7347123545 is 5453217437.

It is a happy number.

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 2967198784 + 4379924761 = 54472^2 + 66181^2 .

It is a cyclic number.

It is not a de Polignac number, because 7347123545 - 2³² = 3052156249 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, 734712350 + ... + 734712359.

It is an arithmetic number, because the mean of its divisors is an integer number (2204137065).

Almost surely, 2^7347123545 is an apocalyptic number.

It is an amenable number.

7347123545 is a deficient number, since it is larger than the sum of its proper divisors (1469424715).

7347123545 is a wasteful number, since it uses less digits than its factorization.

7347123545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469424714.

The product of its digits is 352800, while the sum is 41.

The square root of 7347123545 is about 85715.3635295330. The cubic root of 7347123545 is about 1944.0426155968.

The spelling of 7347123545 in words is "seven billion, three hundred forty-seven million, one hundred twenty-three thousand, five hundred forty-five".