1151366761 has 2 divisors, whose sum is σ = 1151366762. Its totient is φ = 1151366760.

The previous prime is 1151366719. The next prime is 1151366789. The reversal of 1151366761 is 1676631511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1138657536 + 12709225 = 33744^2 + 3565^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1151366761 is a prime.

It is a super-2 number, since 2×1151366761² = 2651290836671262242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1151366761.

It is not a weakly prime, because it can be changed into another prime (1151366791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575683380 + 575683381.

It is an arithmetic number, because the mean of its divisors is an integer number (575683381).

Almost surely, 2^1151366761 is an apocalyptic number.

It is an amenable number.

1151366761 is a deficient number, since it is larger than the sum of its proper divisors (1).

1151366761 is an equidigital number, since it uses as much as digits as its factorization.

1151366761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 37.

The square root of 1151366761 is about 33931.7957231857. The cubic root of 1151366761 is about 1048.1044442772.

The spelling of 1151366761 in words is "one billion, one hundred fifty-one million, three hundred sixty-six thousand, seven hundred sixty-one".