9719240225 has 6 divisors (see below), whose sum is σ = 12051857910. Its totient is φ = 7775392160.

The previous prime is 9719240147. The next prime is 9719240233. The reversal of 9719240225 is 5220429179.

It can be written as a sum of positive squares in 3 ways, for example, as 2521244944 + 7197995281 = 50212^2 + 84841^2 .

It is not a de Polignac number, because 9719240225 - 2⁸ = 9719239969 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 194384780 + ... + 194384829.

It is an arithmetic number, because the mean of its divisors is an integer number (2008642985).

Almost surely, 2^9719240225 is an apocalyptic number.

It is an amenable number.

9719240225 is a deficient number, since it is larger than the sum of its proper divisors (2332617685).

9719240225 is a wasteful number, since it uses less digits than its factorization.

9719240225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388769619 (or 388769614 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 9719240225 is about 98586.2070727949. The cubic root of 9719240225 is about 2134.0803755124.

The spelling of 9719240225 in words is "nine billion, seven hundred nineteen million, two hundred forty thousand, two hundred twenty-five".