105491277 has 6 divisors (see below), whose sum is σ = 152376302. Its totient is φ = 70327512.

The previous prime is 105491231. The next prime is 105491279. The reversal of 105491277 is 772194501.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 54597321 + 50893956 = 7389^2 + 7134^2 .

It is not a de Polignac number, because 105491277 - 2¹⁶ = 105425741 is a prime.

It is a super-2 number, since 2×105491277² = 22256819046181458, 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 (105491279) 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, 5860618 + ... + 5860635.

Almost surely, 2^105491277 is an apocalyptic number.

It is an amenable number.

105491277 is a deficient number, since it is larger than the sum of its proper divisors (46885025).

105491277 is a wasteful number, since it uses less digits than its factorization.

105491277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11721259 (or 11721256 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The square root of 105491277 is about 10270.8946543132. The cubic root of 105491277 is about 472.5040295281.

The spelling of 105491277 in words is "one hundred five million, four hundred ninety-one thousand, two hundred seventy-seven".