9145580557 has 4 divisors (see below), whose sum is σ = 9185517820. Its totient is φ = 9105643296.

The previous prime is 9145580531. The next prime is 9145580569. The reversal of 9145580557 is 7550855419.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7550855419 = 71941 ⋅104959.

It can be written as a sum of positive squares in 2 ways, for example, as 6260923876 + 2884656681 = 79126^2 + 53709^2 .

It is a cyclic number.

It is not a de Polignac number, because 9145580557 - 2¹¹ = 9145578509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9145580557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9145586557) 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, 19968288 + ... + 19968745.

It is an arithmetic number, because the mean of its divisors is an integer number (2296379455).

Almost surely, 2^9145580557 is an apocalyptic number.

It is an amenable number.

9145580557 is a deficient number, since it is larger than the sum of its proper divisors (39937263).

9145580557 is a wasteful number, since it uses less digits than its factorization.

9145580557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39937262.

The product of its (nonzero) digits is 1260000, while the sum is 49.

The square root of 9145580557 is about 95632.5287598315. The cubic root of 9145580557 is about 2091.2394346232.

The spelling of 9145580557 in words is "nine billion, one hundred forty-five million, five hundred eighty thousand, five hundred fifty-seven".