1151435081 has 2 divisors, whose sum is σ = 1151435082. Its totient is φ = 1151435080.

The previous prime is 1151435069. The next prime is 1151435113. The reversal of 1151435081 is 1805341511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 815959225 + 335475856 = 28565^2 + 18316^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1151435081 is a prime.

It is a super-2 number, since 2×1151435081² = 2651605491514953122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1151435011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575717540 + 575717541.

It is an arithmetic number, because the mean of its divisors is an integer number (575717541).

Almost surely, 2^1151435081 is an apocalyptic number.

It is an amenable number.

1151435081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1151435081 is an equidigital number, since it uses as much as digits as its factorization.

1151435081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2400, while the sum is 29.

The square root of 1151435081 is about 33932.8024336334. The cubic root of 1151435081 is about 1048.1251747347.

Adding to 1151435081 its reverse (1805341511), we get a palindrome (2956776592).

The spelling of 1151435081 in words is "one billion, one hundred fifty-one million, four hundred thirty-five thousand, eighty-one".