1151142 has 16 divisors (see below), whose sum is σ = 2317680. Its totient is φ = 381152.

The previous prime is 1151141. The next prime is 1151147. The reversal of 1151142 is 2411511.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151141) 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, 484 + ... + 1592.

It is an arithmetic number, because the mean of its divisors is an integer number (144855).

2^1151142 is an apocalyptic number.

1151142 is an abundant number, since it is smaller than the sum of its proper divisors (1166538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1151142 is a wasteful number, since it uses less digits than its factorization.

1151142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287.

The product of its digits is 40, while the sum is 15.

The square root of 1151142 is about 1072.9128575984. The cubic root of 1151142 is about 104.8036238865.

Adding to 1151142 its reverse (2411511), we get a palindrome (3562653).

The spelling of 1151142 in words is "one million, one hundred fifty-one thousand, one hundred forty-two".