13531742 has 12 divisors (see below), whose sum is σ = 23611680. Its totient is φ = 5799276.

The previous prime is 13531703. The next prime is 13531747. The reversal of 13531742 is 24713531.

It is a super-3 number, since 3×13531742³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531747) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68942 + ... + 69137.

It is an arithmetic number, because the mean of its divisors is an integer number (1967640).

Almost surely, 2^13531742 is an apocalyptic number.

13531742 is a deficient number, since it is larger than the sum of its proper divisors (10079938).

13531742 is a wasteful number, since it uses less digits than its factorization.

13531742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138095 (or 138088 counting only the distinct ones).

The product of its digits is 2520, while the sum is 26.

The square root of 13531742 is about 3678.5516171450. The cubic root of 13531742 is about 238.2966312934.

The spelling of 13531742 in words is "thirteen million, five hundred thirty-one thousand, seven hundred forty-two".