9702531601 has 24 divisors (see below), whose sum is σ = 12084905160. Its totient is φ = 7739246592.

The previous prime is 9702531581. The next prime is 9702531611. The reversal of 9702531601 is 1061352079.

It can be written as a sum of positive squares in 4 ways, for example, as 9144576 + 9693387025 = 3024^2 + 98455^2 .

It is not a de Polignac number, because 9702531601 - 2¹³ = 9702523409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9702531611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8701 + ... + 139573.

It is an arithmetic number, because the mean of its divisors is an integer number (503537715).

Almost surely, 2^9702531601 is an apocalyptic number.

It is an amenable number.

9702531601 is a deficient number, since it is larger than the sum of its proper divisors (2382373559).

9702531601 is a wasteful number, since it uses less digits than its factorization.

9702531601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130993 (or 130986 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 9702531601 is about 98501.4294363285. The cubic root of 9702531601 is about 2132.8567545093.

The spelling of 9702531601 in words is "nine billion, seven hundred two million, five hundred thirty-one thousand, six hundred one".