105521774 has 4 divisors (see below), whose sum is σ = 158282664. Its totient is φ = 52760886.

The previous prime is 105521761. The next prime is 105521783. The reversal of 105521774 is 477125501.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×105521774² = 22269689576214152, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 105521774.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26380442 + ... + 26380445.

It is an arithmetic number, because the mean of its divisors is an integer number (39570666).

Almost surely, 2^105521774 is an apocalyptic number.

105521774 is a deficient number, since it is larger than the sum of its proper divisors (52760890).

105521774 is an equidigital number, since it uses as much as digits as its factorization.

105521774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52760889.

The product of its (nonzero) digits is 9800, while the sum is 32.

The square root of 105521774 is about 10272.3791791386. The cubic root of 105521774 is about 472.5495579907.

The spelling of 105521774 in words is "one hundred five million, five hundred twenty-one thousand, seven hundred seventy-four".