7109019225 has 243 divisors, whose sum is σ = 16506937629. Its totient is φ = 2913926400.

The previous prime is 7109019199. The next prime is 7109019257. The reversal of 7109019225 is 5229109017.

The square root of 7109019225 is 84315.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 38900169 + 7070119056 = 6237^2 + 84084^2 .

It is not a de Polignac number, because 7109019225 - 2¹⁷ = 7108888153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7109019225.

It is an unprimeable number.

It is a polite number, since it can be written in 242 ways as a sum of consecutive naturals, for example, 97383789 + ... + 97383861.

Almost surely, 2^7109019225 is an apocalyptic number.

7109019225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

7109019225 is the 84315-th square number.

7109019225 is the 42158-th centered octagonal number.

It is an amenable number.

7109019225 is an abundant number, since it is smaller than the sum of its proper divisors (9397918404).

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

7109019225 is a wasteful number, since it uses less digits than its factorization.

7109019225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The cubic root of 7109019225 is about 1922.8108447182.

Multiplying 7109019225 by its sum of digits (36), we get a square (255924692100 = 505890²).

The spelling of 7109019225 in words is "seven billion, one hundred nine million, nineteen thousand, two hundred twenty-five".