9144973601 has 4 divisors (see below), whose sum is σ = 9230440752. Its totient is φ = 9059506452.

The previous prime is 9144973597. The next prime is 9144973609. The reversal of 9144973601 is 1063794419.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1063794419 = 31 ⋅34315949.

It is a cyclic number.

It is not a de Polignac number, because 9144973601 - 2² = 9144973597 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9144973609) 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, 42733415 + ... + 42733628.

It is an arithmetic number, because the mean of its divisors is an integer number (2307610188).

Almost surely, 2^9144973601 is an apocalyptic number.

It is an amenable number.

9144973601 is a deficient number, since it is larger than the sum of its proper divisors (85467151).

9144973601 is a wasteful number, since it uses less digits than its factorization.

9144973601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85467150.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 9144973601 is about 95629.3553308815. The cubic root of 9144973601 is about 2091.1931711705.

The spelling of 9144973601 in words is "nine billion, one hundred forty-four million, nine hundred seventy-three thousand, six hundred one".