106621061 has 4 divisors (see below), whose sum is σ = 106745472. Its totient is φ = 106496652.

The previous prime is 106621049. The next prime is 106621069. The reversal of 106621061 is 160126601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 160126601 = 79 ⋅2026919.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-106621061 is a prime.

It is a super-2 number, since 2×106621061² = 22736101297531442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106621069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60911 + ... + 62636.

It is an arithmetic number, because the mean of its divisors is an integer number (26686368).

Almost surely, 2^106621061 is an apocalyptic number.

It is an amenable number.

106621061 is a deficient number, since it is larger than the sum of its proper divisors (124411).

106621061 is an equidigital number, since it uses as much as digits as its factorization.

106621061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124410.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 106621061 is about 10325.7474789964. The cubic root of 106621061 is about 474.1848415927.

Adding to 106621061 its reverse (160126601), we get a palindrome (266747662).

The spelling of 106621061 in words is "one hundred six million, six hundred twenty-one thousand, sixty-one".