1132557121 has 2 divisors, whose sum is σ = 1132557122. Its totient is φ = 1132557120.

The previous prime is 1132557103. The next prime is 1132557133. The reversal of 1132557121 is 1217552311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 952031025 + 180526096 = 30855^2 + 13436^2 .

It is a cyclic number.

It is not a de Polignac number, because 1132557121 - 2⁷ = 1132556993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1132557121.

It is not a weakly prime, because it can be changed into another prime (1132557721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 566278560 + 566278561.

It is an arithmetic number, because the mean of its divisors is an integer number (566278561).

Almost surely, 2^1132557121 is an apocalyptic number.

It is an amenable number.

1132557121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1132557121 is an equidigital number, since it uses as much as digits as its factorization.

1132557121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2100, while the sum is 28.

The square root of 1132557121 is about 33653.4860155675. The cubic root of 1132557121 is about 1042.3655230466.

The spelling of 1132557121 in words is "one billion, one hundred thirty-two million, five hundred fifty-seven thousand, one hundred twenty-one".