1151140442 has 16 divisors (see below), whose sum is σ = 1808870400. Its totient is φ = 548686320.

The previous prime is 1151140433. The next prime is 1151140447. The reversal of 1151140442 is 2440411511.

It is not an unprimeable number, because it can be changed into a prime (1151140447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121034 + ... + 130197.

It is an arithmetic number, because the mean of its divisors is an integer number (113054400).

Almost surely, 2^1151140442 is an apocalyptic number.

1151140442 is a deficient number, since it is larger than the sum of its proper divisors (657729958).

1151140442 is a wasteful number, since it uses less digits than its factorization.

1151140442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251341.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 1151140442 is about 33928.4606488417. The cubic root of 1151140442 is about 1048.0357660472.

Adding to 1151140442 its reverse (2440411511), we get a palindrome (3591551953).

The spelling of 1151140442 in words is "one billion, one hundred fifty-one million, one hundred forty thousand, four hundred forty-two".