1151443087 has 4 divisors (see below), whose sum is σ = 1160509696. Its totient is φ = 1142376480.

The previous prime is 1151443081. The next prime is 1151443093. The reversal of 1151443087 is 7803441511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7803441511 = 87623 ⋅89057.

It is an interprime number because it is at equal distance from previous prime (1151443081) and next prime (1151443093).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1151443087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151443081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4533114 + ... + 4533367.

It is an arithmetic number, because the mean of its divisors is an integer number (290127424).

Almost surely, 2^1151443087 is an apocalyptic number.

1151443087 is a deficient number, since it is larger than the sum of its proper divisors (9066609).

1151443087 is an equidigital number, since it uses as much as digits as its factorization.

1151443087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9066608.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 1151443087 is about 33932.9204018752. The cubic root of 1151443087 is about 1048.1276039557.

Adding to 1151443087 its reverse (7803441511), we get a palindrome (8954884598).

The spelling of 1151443087 in words is "one billion, one hundred fifty-one million, four hundred forty-three thousand, eighty-seven".