13500042 has 16 divisors (see below), whose sum is σ = 27730272. Its totient is φ = 4378320.

The previous prime is 13500037. The next prime is 13500049. The reversal of 13500042 is 24000531.

It is a super-2 number, since 2×13500042² = 364502268003528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13499994 and 13500030.

It is not an unprimeable number, because it can be changed into a prime (13500049) 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, 30184 + ... + 30627.

It is an arithmetic number, because the mean of its divisors is an integer number (1733142).

Almost surely, 2^13500042 is an apocalyptic number.

13500042 is an abundant number, since it is smaller than the sum of its proper divisors (14230230).

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

13500042 is a wasteful number, since it uses less digits than its factorization.

13500042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60853.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 13500042 is about 3674.2403296464. The cubic root of 13500042 is about 238.1104047240.

Adding to 13500042 its reverse (24000531), we get a palindrome (37500573).

The spelling of 13500042 in words is "thirteen million, five hundred thousand, forty-two".