21365102 has 8 divisors (see below), whose sum is σ = 34961112. Its totient is φ = 9711400.

The previous prime is 21365093. The next prime is 21365117. The reversal of 21365102 is 20156312.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 485549 + ... + 485592.

It is an arithmetic number, because the mean of its divisors is an integer number (4370139).

Almost surely, 2^21365102 is an apocalyptic number.

21365102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21365102 is a deficient number, since it is larger than the sum of its proper divisors (13596010).

21365102 is a wasteful number, since it uses less digits than its factorization.

21365102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971154.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 21365102 is about 4622.2399331926. The cubic root of 21365102 is about 277.4821112295.

The spelling of 21365102 in words is "twenty-one million, three hundred sixty-five thousand, one hundred two".