105090977 has 4 divisors (see below), whose sum is σ = 106872240. Its totient is φ = 103309716.

The previous prime is 105090971. The next prime is 105091001. The reversal of 105090977 is 779090501.

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.

It is a cyclic number.

It is not a de Polignac number, because 105090977 - 2¹⁶ = 105025441 is a prime.

It is a super-2 number, since 2×105090977² = 22088226893629058, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 105090977.

It is not an unprimeable number, because it can be changed into a prime (105090971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 890543 + ... + 890660.

It is an arithmetic number, because the mean of its divisors is an integer number (26718060).

Almost surely, 2^105090977 is an apocalyptic number.

It is an amenable number.

105090977 is a deficient number, since it is larger than the sum of its proper divisors (1781263).

105090977 is an equidigital number, since it uses as much as digits as its factorization.

105090977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1781262.

The product of its (nonzero) digits is 19845, while the sum is 38.

The square root of 105090977 is about 10251.3890278342. The cubic root of 105090977 is about 471.9056131887.

The spelling of 105090977 in words is "one hundred five million, ninety thousand, nine hundred seventy-seven".