1153050891 has 32 divisors (see below), whose sum is σ = 1753424640. Its totient is φ = 669441024.

The previous prime is 1153050889. The next prime is 1153050893. The reversal of 1153050891 is 1980503511.

It is an interprime number because it is at equal distance from previous prime (1153050889) and next prime (1153050893).

It is not a de Polignac number, because 1153050891 - 2¹ = 1153050889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1153050893) 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 in 31 ways as a sum of consecutive naturals, for example, 27831 + ... + 55503.

It is an arithmetic number, because the mean of its divisors is an integer number (54794520).

Almost surely, 2^1153050891 is an apocalyptic number.

1153050891 is a deficient number, since it is larger than the sum of its proper divisors (600373749).

1153050891 is a wasteful number, since it uses less digits than its factorization.

1153050891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27755.

The product of its (nonzero) digits is 5400, while the sum is 33.

The square root of 1153050891 is about 33956.6030544871. The cubic root of 1153050891 is about 1048.6152239458.

The spelling of 1153050891 in words is "one billion, one hundred fifty-three million, fifty thousand, eight hundred ninety-one".