9459702121 has 9 divisors (see below), whose sum is σ = 9985736061. Its totient is φ = 8960072364.

The previous prime is 9459702113. The next prime is 9459702127. The reversal of 9459702121 is 1212079549.

It is a happy number.

The square root of 9459702121 is 97261.

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

It is not a de Polignac number, because 9459702121 - 2³ = 9459702113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9459702127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1845400 + ... + 1850518.

It is an arithmetic number, because the mean of its divisors is an integer number (1109526229).

Almost surely, 2^9459702121 is an apocalyptic number.

9459702121 is the 97261-st square number.

9459702121 is the 48631-st centered octagonal number.

It is an amenable number.

9459702121 is a deficient number, since it is larger than the sum of its proper divisors (526033940).

9459702121 is an frugal number, since it uses more digits than its factorization.

9459702121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10276 (or 5138 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 40.

The cubic root of 9459702121 is about 2114.9129038422.

The spelling of 9459702121 in words is "nine billion, four hundred fifty-nine million, seven hundred two thousand, one hundred twenty-one".