9725200135 has 32 divisors (see below), whose sum is σ = 13663203840. Its totient is φ = 6506172288.

The previous prime is 9725200091. The next prime is 9725200169. The reversal of 9725200135 is 5310025279.

It is not a de Polignac number, because 9725200135 - 2⁹ = 9725199623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9725200135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1521376 + ... + 1527754.

It is an arithmetic number, because the mean of its divisors is an integer number (426975120).

Almost surely, 2^9725200135 is an apocalyptic number.

9725200135 is a deficient number, since it is larger than the sum of its proper divisors (3938003705).

9725200135 is a wasteful number, since it uses less digits than its factorization.

9725200135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7447.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 9725200135 is about 98616.4293360898. The cubic root of 9725200135 is about 2134.5164976709.

The spelling of 9725200135 in words is "nine billion, seven hundred twenty-five million, two hundred thousand, one hundred thirty-five".