105969155 has 4 divisors (see below), whose sum is σ = 127162992. Its totient is φ = 84775320.

The previous prime is 105969151. The next prime is 105969163. The reversal of 105969155 is 551969501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 551969501 = 22787 ⋅24223.

It is not a de Polignac number, because 105969155 - 2² = 105969151 is a prime.

It is a super-2 number, since 2×105969155² = 22458923622828050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105969151) 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, 10596911 + ... + 10596920.

It is an arithmetic number, because the mean of its divisors is an integer number (31790748).

Almost surely, 2^105969155 is an apocalyptic number.

105969155 is a deficient number, since it is larger than the sum of its proper divisors (21193837).

105969155 is an equidigital number, since it uses as much as digits as its factorization.

105969155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21193836.

The product of its (nonzero) digits is 60750, while the sum is 41.

The square root of 105969155 is about 10294.1320663765. The cubic root of 105969155 is about 473.2164397034.

The spelling of 105969155 in words is "one hundred five million, nine hundred sixty-nine thousand, one hundred fifty-five".