1151261342 has 16 divisors (see below), whose sum is σ = 2153008512. Its totient is φ = 448543320.

The previous prime is 1151261329. The next prime is 1151261351. The reversal of 1151261342 is 2431621511.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3737708 + ... + 3738015.

It is an arithmetic number, because the mean of its divisors is an integer number (134563032).

Almost surely, 2^1151261342 is an apocalyptic number.

1151261342 is a deficient number, since it is larger than the sum of its proper divisors (1001747170).

1151261342 is a wasteful number, since it uses less digits than its factorization.

1151261342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7475743.

The product of its digits is 1440, while the sum is 26.

The square root of 1151261342 is about 33930.2422920910. The cubic root of 1151261342 is about 1048.0724551959.

Adding to 1151261342 its reverse (2431621511), we get a palindrome (3582882853).

The spelling of 1151261342 in words is "one billion, one hundred fifty-one million, two hundred sixty-one thousand, three hundred forty-two".