9169903125 has 54 divisors (see below), whose sum is σ = 16584754914. Its totient is φ = 4882050000.

The previous prime is 9169903073. The next prime is 9169903129. The reversal of 9169903125 is 5213099619.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 3 ways, for example, as 4237228836 + 4932674289 = 65094^2 + 70233^2 .

It is not a de Polignac number, because 9169903125 - 2¹⁰ = 9169902101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9169903129) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 16059090 + ... + 16059660.

It is an arithmetic number, because the mean of its divisors is an integer number (307125091).

Almost surely, 2^9169903125 is an apocalyptic number.

It is an amenable number.

9169903125 is a deficient number, since it is larger than the sum of its proper divisors (7414851789).

9169903125 is an frugal number, since it uses more digits than its factorization.

9169903125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173 (or 579 counting only the distinct ones).

The product of its (nonzero) digits is 131220, while the sum is 45.

The square root of 9169903125 is about 95759.6111364285. The cubic root of 9169903125 is about 2093.0916694638.

Multiplying 9169903125 by its sum of digits (45), we get a square (412645640625 = 642375²).

9169903125 divided by its sum of digits (45) gives a square (203775625 = 14275²).

The spelling of 9169903125 in words is "nine billion, one hundred sixty-nine million, nine hundred three thousand, one hundred twenty-five".