1151452121 has 2 divisors, whose sum is σ = 1151452122. Its totient is φ = 1151452120.

The previous prime is 1151452103. The next prime is 1151452139. The reversal of 1151452121 is 1212541511.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (1151452103) and next prime (1151452139).

It can be written as a sum of positive squares in only one way, i.e., 606883225 + 544568896 = 24635^2 + 23336^2 .

It is a cyclic number.

It is not a de Polignac number, because 1151452121 - 2¹⁰ = 1151451097 is a prime.

It is not a weakly prime, because it can be changed into another prime (1151457121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575726060 + 575726061.

It is an arithmetic number, because the mean of its divisors is an integer number (575726061).

Almost surely, 2^1151452121 is an apocalyptic number.

It is an amenable number.

1151452121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1151452121 is an equidigital number, since it uses as much as digits as its factorization.

1151452121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 400, while the sum is 23.

The square root of 1151452121 is about 33933.0535171829. The cubic root of 1151452121 is about 1048.1303450841.

Adding to 1151452121 its reverse (1212541511), we get a palindrome (2363993632).

The spelling of 1151452121 in words is "one billion, one hundred fifty-one million, four hundred fifty-two thousand, one hundred twenty-one".