9145245243 has 8 divisors (see below), whose sum is σ = 12835432000. Its totient is φ = 5775944328.

The previous prime is 9145245139. The next prime is 9145245253. The reversal of 9145245243 is 3425425419.

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

It is not a de Polignac number, because 9145245243 - 2¹³ = 9145237051 is a prime.

It is a super-2 number, since 2×9145245243² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9145245253) 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, 80221393 + ... + 80221506.

It is an arithmetic number, because the mean of its divisors is an integer number (1604429000).

Almost surely, 2^9145245243 is an apocalyptic number.

9145245243 is a deficient number, since it is larger than the sum of its proper divisors (3690186757).

9145245243 is a wasteful number, since it uses less digits than its factorization.

9145245243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160442921.

The product of its digits is 172800, while the sum is 39.

The square root of 9145245243 is about 95630.7756059732. The cubic root of 9145245243 is about 2091.2138765436.

The spelling of 9145245243 in words is "nine billion, one hundred forty-five million, two hundred forty-five thousand, two hundred forty-three".