11539742 has 4 divisors (see below), whose sum is σ = 17309616. Its totient is φ = 5769870.

The previous prime is 11539733. The next prime is 11539747. The reversal of 11539742 is 24793511.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 11539699 and 11539708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11539747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2884934 + ... + 2884937.

It is an arithmetic number, because the mean of its divisors is an integer number (4327404).

Almost surely, 2^11539742 is an apocalyptic number.

11539742 is a deficient number, since it is larger than the sum of its proper divisors (5769874).

11539742 is an equidigital number, since it uses as much as digits as its factorization.

11539742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5769873.

The product of its digits is 7560, while the sum is 32.

The square root of 11539742 is about 3397.0195760401. The cubic root of 11539742 is about 225.9775867297.

The spelling of 11539742 in words is "eleven million, five hundred thirty-nine thousand, seven hundred forty-two".