985059121 has 2 divisors, whose sum is σ = 985059122. Its totient is φ = 985059120.

The previous prime is 985059091. The next prime is 985059133. The reversal of 985059121 is 121950589.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 542377521 + 442681600 = 23289^2 + 21040^2 .

It is a cyclic number.

It is not a de Polignac number, because 985059121 - 2¹³ = 985050929 is a prime.

It is not a weakly prime, because it can be changed into another prime (985059151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492529560 + 492529561.

It is an arithmetic number, because the mean of its divisors is an integer number (492529561).

Almost surely, 2^985059121 is an apocalyptic number.

It is an amenable number.

985059121 is a deficient number, since it is larger than the sum of its proper divisors (1).

985059121 is an equidigital number, since it uses as much as digits as its factorization.

985059121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 40.

The square root of 985059121 is about 31385.6515146651. The cubic root of 985059121 is about 994.9946957286.

The spelling of 985059121 in words is "nine hundred eighty-five million, fifty-nine thousand, one hundred twenty-one".