1151326061 has 2 divisors, whose sum is σ = 1151326062. Its totient is φ = 1151326060.

The previous prime is 1151326051. The next prime is 1151326063. The reversal of 1151326061 is 1606231511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 772284100 + 379041961 = 27790^2 + 19469^2 .

It is a cyclic number.

It is not a de Polignac number, because 1151326061 - 2¹⁰ = 1151325037 is a prime.

Together with 1151326063, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1151326061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1151326063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575663030 + 575663031.

It is an arithmetic number, because the mean of its divisors is an integer number (575663031).

Almost surely, 2^1151326061 is an apocalyptic number.

It is an amenable number.

1151326061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1151326061 is an equidigital number, since it uses as much as digits as its factorization.

1151326061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 1151326061 is about 33931.1959854055. The cubic root of 1151326061 is about 1048.0920942149.

Adding to 1151326061 its reverse (1606231511), we get a palindrome (2757557572).

The spelling of 1151326061 in words is "one billion, one hundred fifty-one million, three hundred twenty-six thousand, sixty-one".