1151142215 has 16 divisors (see below), whose sum is σ = 1406246400. Its totient is φ = 904362912.

The previous prime is 1151142169. The next prime is 1151142221. The reversal of 1151142215 is 5122411511.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1151142215 - 2¹⁶ = 1151076679 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 458654 + ... + 461156.

It is an arithmetic number, because the mean of its divisors is an integer number (87890400).

Almost surely, 2^1151142215 is an apocalyptic number.

1151142215 is a deficient number, since it is larger than the sum of its proper divisors (255104185).

1151142215 is a wasteful number, since it uses less digits than its factorization.

1151142215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4126.

The product of its digits is 400, while the sum is 23.

The square root of 1151142215 is about 33928.4867773380. The cubic root of 1151142215 is about 1048.0363041126.

Adding to 1151142215 its reverse (5122411511), we get a palindrome (6273553726).

The spelling of 1151142215 in words is "one billion, one hundred fifty-one million, one hundred forty-two thousand, two hundred fifteen".