7472547121 has 8 divisors (see below), whose sum is σ = 8264855144. Its totient is φ = 6711310080.

The previous prime is 7472547109. The next prime is 7472547143. The reversal of 7472547121 is 1217452747.

It can be written as a sum of positive squares in 4 ways, for example, as 42107121 + 7430440000 = 6489^2 + 86200^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7472547121 - 2²¹ = 7470449969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7472547191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7767240 + ... + 7768201.

It is an arithmetic number, because the mean of its divisors is an integer number (1033106893).

Almost surely, 2^7472547121 is an apocalyptic number.

It is an amenable number.

7472547121 is a deficient number, since it is larger than the sum of its proper divisors (792308023).

7472547121 is a wasteful number, since it uses less digits than its factorization.

7472547121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15535491.

The product of its digits is 109760, while the sum is 40.

The square root of 7472547121 is about 86443.8957995300. The cubic root of 7472547121 is about 1955.0425808628.

Adding to 7472547121 its reverse (1217452747), we get a palindrome (8689999868).

The spelling of 7472547121 in words is "seven billion, four hundred seventy-two million, five hundred forty-seven thousand, one hundred twenty-one".