105075551 has 6 divisors (see below), whose sum is σ = 122230800. Its totient is φ = 90064716.

The previous prime is 105075539. The next prime is 105075557. The reversal of 105075551 is 155570501.

It is a de Polignac number, because none of the positive numbers 2^k-105075551 is a prime.

It is a super-2 number, since 2×105075551² = 22081742835907202, 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 (105075557) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1072151 + ... + 1072248.

It is an arithmetic number, because the mean of its divisors is an integer number (20371800).

Almost surely, 2^105075551 is an apocalyptic number.

105075551 is a deficient number, since it is larger than the sum of its proper divisors (17155249).

105075551 is an equidigital number, since it uses as much as digits as its factorization.

105075551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2144413 (or 2144406 counting only the distinct ones).

The product of its (nonzero) digits is 4375, while the sum is 29.

The square root of 105075551 is about 10250.6366143767. The cubic root of 105075551 is about 471.8825221730.

The spelling of 105075551 in words is "one hundred five million, seventy-five thousand, five hundred fifty-one".