105069661 has 4 divisors (see below), whose sum is σ = 105387424. Its totient is φ = 104751900.

The previous prime is 105069631. The next prime is 105069689. The reversal of 105069661 is 166960501.

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: 166960501 = 59 ⋅2829839.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105069661 is a prime.

It is a super-2 number, since 2×105069661² = 22079267325309842, 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 (105069631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158385 + ... + 159046.

It is an arithmetic number, because the mean of its divisors is an integer number (26346856).

Almost surely, 2^105069661 is an apocalyptic number.

It is an amenable number.

105069661 is a deficient number, since it is larger than the sum of its proper divisors (317763).

105069661 is an equidigital number, since it uses as much as digits as its factorization.

105069661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317762.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 105069661 is about 10250.3493111211. The cubic root of 105069661 is about 471.8737048983.

The spelling of 105069661 in words is "one hundred five million, sixty-nine thousand, six hundred sixty-one".