10218542 has 8 divisors (see below), whose sum is σ = 16134600. Its totient is φ = 4840344.

The previous prime is 10218541. The next prime is 10218557. The reversal of 10218542 is 24581201.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10218541) 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, 134417 + ... + 134492.

It is an arithmetic number, because the mean of its divisors is an integer number (2016825).

Almost surely, 2^10218542 is an apocalyptic number.

10218542 is a deficient number, since it is larger than the sum of its proper divisors (5916058).

10218542 is a wasteful number, since it uses less digits than its factorization.

10218542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268930.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 10218542 is about 3196.6454291961. The cubic root of 10218542 is about 217.0016210317.

Adding to 10218542 its reverse (24581201), we get a palindrome (34799743).

The spelling of 10218542 in words is "ten million, two hundred eighteen thousand, five hundred forty-two".