105641655 has 32 divisors (see below), whose sum is σ = 204539904. Its totient is φ = 45451776.

The previous prime is 105641651. The next prime is 105641663. The reversal of 105641655 is 556146501.

It is not a de Polignac number, because 105641655 - 2² = 105641651 is a prime.

It is a super-2 number, since 2×105641655² = 22320318542278050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105641651) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27807 + ... + 31376.

It is an arithmetic number, because the mean of its divisors is an integer number (6391872).

Almost surely, 2^105641655 is an apocalyptic number.

105641655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

105641655 is a deficient number, since it is larger than the sum of its proper divisors (98898249).

105641655 is a wasteful number, since it uses less digits than its factorization.

105641655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59215.

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 105641655 is about 10278.2126364461. The cubic root of 105641655 is about 472.7284413690.

The spelling of 105641655 in words is "one hundred five million, six hundred forty-one thousand, six hundred fifty-five".