1162151989 has 2 divisors, whose sum is σ = 1162151990. Its totient is φ = 1162151988.

The previous prime is 1162151971. The next prime is 1162151993. The reversal of 1162151989 is 9891512611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1158857764 + 3294225 = 34042^2 + 1815^2 .

It is a cyclic number.

It is not a de Polignac number, because 1162151989 - 2¹¹ = 1162149941 is a prime.

It is a super-2 number, since 2×1162151989² = 2701194491073312242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1162151999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581075994 + 581075995.

It is an arithmetic number, because the mean of its divisors is an integer number (581075995).

Almost surely, 2^1162151989 is an apocalyptic number.

It is an amenable number.

1162151989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1162151989 is an equidigital number, since it uses as much as digits as its factorization.

1162151989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 43.

The square root of 1162151989 is about 34090.3503795429. The cubic root of 1162151989 is about 1051.3669238794.

The spelling of 1162151989 in words is "one billion, one hundred sixty-two million, one hundred fifty-one thousand, nine hundred eighty-nine".