1151511142 has 16 divisors (see below), whose sum is σ = 1757667600. Its totient is φ = 565634560.

The previous prime is 1151511113. The next prime is 1151511143. The reversal of 1151511142 is 2411151511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151511143) 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 7 ways as a sum of consecutive naturals, for example, 357234 + ... + 360442.

It is an arithmetic number, because the mean of its divisors is an integer number (109854225).

Almost surely, 2^1151511142 is an apocalyptic number.

1151511142 is a deficient number, since it is larger than the sum of its proper divisors (606156458).

1151511142 is a wasteful number, since it uses less digits than its factorization.

1151511142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6311.

The product of its digits is 200, while the sum is 22.

The square root of 1151511142 is about 33933.9231743104. The cubic root of 1151511142 is about 1048.1482530929.

Adding to 1151511142 its reverse (2411151511), we get a palindrome (3562662653).

The spelling of 1151511142 in words is "one billion, one hundred fifty-one million, five hundred eleven thousand, one hundred forty-two".