21346101 has 48 divisors (see below), whose sum is σ = 39312000. Its totient is φ = 10865664.

The previous prime is 21346097. The next prime is 21346109. The reversal of 21346101 is 10164312.

It is a happy number.

21346101 is a `hidden beast` number, since 21 + 34 + 610 + 1 = 666.

It is not a de Polignac number, because 21346101 - 2² = 21346097 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21346109) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19825 + ... + 20873.

It is an arithmetic number, because the mean of its divisors is an integer number (819000).

Almost surely, 2^21346101 is an apocalyptic number.

21346101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

21346101 is a deficient number, since it is larger than the sum of its proper divisors (17965899).

21346101 is a wasteful number, since it uses less digits than its factorization.

21346101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1098 (or 1095 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 21346101 is about 4620.1840872415. The cubic root of 21346101 is about 277.3998274913.

The spelling of 21346101 in words is "twenty-one million, three hundred forty-six thousand, one hundred one".