11307142 has 48 divisors (see below), whose sum is σ = 22826448. Its totient is φ = 4139520.

The previous prime is 11307133. The next prime is 11307169. The reversal of 11307142 is 24170311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18018 + ... + 18634.

It is an arithmetic number, because the mean of its divisors is an integer number (475551).

Almost surely, 2^11307142 is an apocalyptic number.

11307142 is an abundant number, since it is smaller than the sum of its proper divisors (11519306).

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

11307142 is a wasteful number, since it uses less digits than its factorization.

11307142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661 (or 654 counting only the distinct ones).

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

The square root of 11307142 is about 3362.6094034247. The cubic root of 11307142 is about 224.4489693090.

Adding to 11307142 its reverse (24170311), we get a palindrome (35477453).

It can be divided in two parts, 11307 and 142, that added together give a square (11449 = 107²).

The spelling of 11307142 in words is "eleven million, three hundred seven thousand, one hundred forty-two".