106350021 has 6 divisors (see below), whose sum is σ = 153616710. Its totient is φ = 70900008.

The previous prime is 106350017. The next prime is 106350031. The reversal of 106350021 is 120053601.

106350021 is a `hidden beast` number, since 10 + 635 + 0 + 0 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 104837121 + 1512900 = 10239^2 + 1230^2 .

It is not a de Polignac number, because 106350021 - 2² = 106350017 is a prime.

It is a super-2 number, since 2×106350021² = 22620653933400882, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 106349976 and 106350003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106350001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5908326 + ... + 5908343.

It is an arithmetic number, because the mean of its divisors is an integer number (25602785).

Almost surely, 2^106350021 is an apocalyptic number.

It is an amenable number.

106350021 is a deficient number, since it is larger than the sum of its proper divisors (47266689).

106350021 is a wasteful number, since it uses less digits than its factorization.

106350021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11816675 (or 11816672 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 106350021 is about 10312.6146539081. The cubic root of 106350021 is about 473.7826942811.

The spelling of 106350021 in words is "one hundred six million, three hundred fifty thousand, twenty-one".