106355661 has 4 divisors (see below), whose sum is σ = 141807552. Its totient is φ = 70903772.

The previous prime is 106355647. The next prime is 106355677. The reversal of 106355661 is 166553601.

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.

It is a cyclic number.

It is not a de Polignac number, because 106355661 - 2⁷ = 106355533 is a prime.

It is a super-2 number, since 2×106355661² = 22623053253493842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106355461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17725941 + ... + 17725946.

It is an arithmetic number, because the mean of its divisors is an integer number (35451888).

Almost surely, 2^106355661 is an apocalyptic number.

It is an amenable number.

106355661 is a deficient number, since it is larger than the sum of its proper divisors (35451891).

106355661 is an equidigital number, since it uses as much as digits as its factorization.

106355661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35451890.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 106355661 is about 10312.8881017880. Note that the first 3 decimals coincide. The cubic root of 106355661 is about 473.7910694155.

The spelling of 106355661 in words is "one hundred six million, three hundred fifty-five thousand, six hundred sixty-one".