11142730 has 8 divisors (see below), whose sum is σ = 20056932. Its totient is φ = 4457088.

The previous prime is 11142697. The next prime is 11142731. The reversal of 11142730 is 3724111.

It can be written as a sum of positive squares in 2 ways, for example, as 10517049 + 625681 = 3243^2 + 791^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 11142698 and 11142707.

It is not an unprimeable number, because it can be changed into a prime (11142731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 557127 + ... + 557146.

Almost surely, 2^11142730 is an apocalyptic number.

11142730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11142730 is a deficient number, since it is larger than the sum of its proper divisors (8914202).

11142730 is a wasteful number, since it uses less digits than its factorization.

11142730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114280.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 11142730 is about 3338.0727972889. The cubic root of 11142730 is about 223.3557834910.

Adding to 11142730 its reverse (3724111), we get a palindrome (14866841).

It can be divided in two parts, 1114 and 2730, that added together give a square (3844 = 62²).

The spelling of 11142730 in words is "eleven million, one hundred forty-two thousand, seven hundred thirty".