9154528121 has 2 divisors, whose sum is σ = 9154528122. Its totient is φ = 9154528120.

The previous prime is 9154528063. The next prime is 9154528133. The reversal of 9154528121 is 1218254519.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6856668025 + 2297860096 = 82805^2 + 47936^2 .

It is a cyclic number.

It is not a de Polignac number, because 9154528121 - 2¹⁸ = 9154265977 is a prime.

It is not a weakly prime, because it can be changed into another prime (9154528151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4577264060 + 4577264061.

It is an arithmetic number, because the mean of its divisors is an integer number (4577264061).

Almost surely, 2^9154528121 is an apocalyptic number.

It is an amenable number.

9154528121 is a deficient number, since it is larger than the sum of its proper divisors (1).

9154528121 is an equidigital number, since it uses as much as digits as its factorization.

9154528121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28800, while the sum is 38.

The square root of 9154528121 is about 95679.2982886058. The cubic root of 9154528121 is about 2091.9211992474.

The spelling of 9154528121 in words is "nine billion, one hundred fifty-four million, five hundred twenty-eight thousand, one hundred twenty-one".