1151085599 has 4 divisors (see below), whose sum is σ = 1153833240. Its totient is φ = 1148337960.

The previous prime is 1151085571. The next prime is 1151085631. The reversal of 1151085599 is 9955801511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9955801511 = 17 ⋅585635383.

It is a cyclic number.

It is not a de Polignac number, because 1151085599 - 2⁸ = 1151085343 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 (1151085539) 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, 1373192 + ... + 1374029.

It is an arithmetic number, because the mean of its divisors is an integer number (288458310).

Almost surely, 2^1151085599 is an apocalyptic number.

1151085599 is a deficient number, since it is larger than the sum of its proper divisors (2747641).

1151085599 is an equidigital number, since it uses as much as digits as its factorization.

1151085599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2747640.

The product of its (nonzero) digits is 81000, while the sum is 44.

The square root of 1151085599 is about 33927.6524239447. The cubic root of 1151085599 is about 1048.0191221648.

The spelling of 1151085599 in words is "one billion, one hundred fifty-one million, eighty-five thousand, five hundred ninety-nine".