1148578420573 has 4 divisors (see below), whose sum is σ = 1151386681180. Its totient is φ = 1145770159968.

The previous prime is 1148578420553. The next prime is 1148578420601. The reversal of 1148578420573 is 3750248758411.

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 586973564164 + 561604856409 = 766142^2 + 749403^2 .

It is a cyclic number.

It is not a de Polignac number, because 1148578420573 - 2⁵ = 1148578420541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1148578420553) 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, 1404129690 + ... + 1404130507.

It is an arithmetic number, because the mean of its divisors is an integer number (287846670295).

Almost surely, 2^{1148578420573} is an apocalyptic number.

It is an amenable number.

1148578420573 is a deficient number, since it is larger than the sum of its proper divisors (2808260607).

1148578420573 is an equidigital number, since it uses as much as digits as its factorization.

1148578420573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2808260606.

The product of its (nonzero) digits is 7526400, while the sum is 55.

The spelling of 1148578420573 in words is "one trillion, one hundred forty-eight billion, five hundred seventy-eight million, four hundred twenty thousand, five hundred seventy-three".