9145023228 has 192 divisors, whose sum is σ = 27636940800. Its totient is φ = 2585753280.

The previous prime is 9145023211. The next prime is 9145023229. The reversal of 9145023228 is 8223205419.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 9145023192 and 9145023201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9145023229) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1509301 + ... + 1515347.

It is an arithmetic number, because the mean of its divisors is an integer number (143942400).

Almost surely, 2^9145023228 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9145023228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13818470400).

9145023228 is an abundant number, since it is smaller than the sum of its proper divisors (18491917572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9145023228 is a wasteful number, since it uses less digits than its factorization.

9145023228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6157 (or 6149 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 9145023228 is about 95629.6148062931. The cubic root of 9145023228 is about 2091.1969539208.

The spelling of 9145023228 in words is "nine billion, one hundred forty-five million, twenty-three thousand, two hundred twenty-eight".