106201621 has 8 divisors (see below), whose sum is σ = 111898080. Its totient is φ = 100515888.

The previous prime is 106201607. The next prime is 106201639. The reversal of 106201621 is 126102601.

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

It is a cyclic number.

It is not a de Polignac number, because 106201621 - 2¹¹ = 106199573 is a prime.

It is a super-2 number, since 2×106201621² = 22557568606055282, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106201661) 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, 25155 + ... + 29071.

It is an arithmetic number, because the mean of its divisors is an integer number (13987260).

Almost surely, 2^106201621 is an apocalyptic number.

It is an amenable number.

106201621 is a deficient number, since it is larger than the sum of its proper divisors (5696459).

106201621 is a wasteful number, since it uses less digits than its factorization.

106201621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5363.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 106201621 is about 10305.4170706478. The cubic root of 106201621 is about 473.5622207931.

The spelling of 106201621 in words is "one hundred six million, two hundred one thousand, six hundred twenty-one".