1008525121 has 2 divisors, whose sum is σ = 1008525122. Its totient is φ = 1008525120.

The previous prime is 1008525103. The next prime is 1008525157. The reversal of 1008525121 is 1215258001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 568154896 + 440370225 = 23836^2 + 20985^2 .

It is a cyclic number.

It is not a de Polignac number, because 1008525121 - 2²³ = 1000136513 is a prime.

It is not a weakly prime, because it can be changed into another prime (1008525521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 504262560 + 504262561.

It is an arithmetic number, because the mean of its divisors is an integer number (504262561).

Almost surely, 2^1008525121 is an apocalyptic number.

It is an amenable number.

1008525121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1008525121 is an equidigital number, since it uses as much as digits as its factorization.

1008525121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 800, while the sum is 25.

The square root of 1008525121 is about 31757.2845344182. The cubic root of 1008525121 is about 1002.8336697314.

The spelling of 1008525121 in words is "one billion, eight million, five hundred twenty-five thousand, one hundred twenty-one".