1151331005 has 8 divisors (see below), whose sum is σ = 1507197024. Its totient is φ = 837331600.

The previous prime is 1151330993. The next prime is 1151331007. The reversal of 1151331005 is 5001331511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1151331005 - 2¹² = 1151326909 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 (1151331007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10466591 + ... + 10466700.

It is an arithmetic number, because the mean of its divisors is an integer number (188399628).

Almost surely, 2^1151331005 is an apocalyptic number.

It is an amenable number.

1151331005 is a deficient number, since it is larger than the sum of its proper divisors (355866019).

1151331005 is a wasteful number, since it uses less digits than its factorization.

1151331005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20933307.

The product of its (nonzero) digits is 225, while the sum is 20.

The square root of 1151331005 is about 33931.2688386391. The cubic root of 1151331005 is about 1048.0935944444.

Adding to 1151331005 its reverse (5001331511), we get a palindrome (6152662516).

The spelling of 1151331005 in words is "one billion, one hundred fifty-one million, three hundred thirty-one thousand, five".