105290977 has 4 divisors (see below), whose sum is σ = 114862896. Its totient is φ = 95719060.

The previous prime is 105290959. The next prime is 105291007. The reversal of 105290977 is 779092501.

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 a de Polignac number, because none of the positive numbers 2^k-105290977 is a prime.

It is a super-2 number, since 2×105290977² = 22172379675229058, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105290377) 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, 4785943 + ... + 4785964.

It is an arithmetic number, because the mean of its divisors is an integer number (28715724).

Almost surely, 2^105290977 is an apocalyptic number.

It is an amenable number.

105290977 is a deficient number, since it is larger than the sum of its proper divisors (9571919).

105290977 is an equidigital number, since it uses as much as digits as its factorization.

105290977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9571918.

The product of its (nonzero) digits is 39690, while the sum is 40.

The square root of 105290977 is about 10261.1391667787. The cubic root of 105290977 is about 472.2047867109.

It can be divided in two parts, 1052 and 90977, that added together give a palindrome (92029).

The spelling of 105290977 in words is "one hundred five million, two hundred ninety thousand, nine hundred seventy-seven".