9145597547 has 4 divisors (see below), whose sum is σ = 9248357160. Its totient is φ = 9042837936.

The previous prime is 9145597537. The next prime is 9145597553. The reversal of 9145597547 is 7457955419.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9145597547 - 2¹⁸ = 9145335403 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9145597492 and 9145597501.

It is not an unprimeable number, because it can be changed into a prime (9145597537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51379673 + ... + 51379850.

It is an arithmetic number, because the mean of its divisors is an integer number (2312089290).

Almost surely, 2^9145597547 is an apocalyptic number.

9145597547 is a deficient number, since it is larger than the sum of its proper divisors (102759613).

9145597547 is a wasteful number, since it uses less digits than its factorization.

9145597547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102759612.

The product of its digits is 7938000, while the sum is 56.

The square root of 9145597547 is about 95632.6175893978. The cubic root of 9145597547 is about 2091.2407296070.

The spelling of 9145597547 in words is "nine billion, one hundred forty-five million, five hundred ninety-seven thousand, five hundred forty-seven".