105401047 has 4 divisors (see below), whose sum is σ = 107389800. Its totient is φ = 103412296.

The previous prime is 105401027. The next prime is 105401069. The reversal of 105401047 is 740104501.

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

It is a cyclic number.

It is not a de Polignac number, because 105401047 - 2¹¹ = 105398999 is a prime.

It is a super-2 number, since 2×105401047² = 22218761417392418, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105401017) 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, 994297 + ... + 994402.

It is an arithmetic number, because the mean of its divisors is an integer number (26847450).

Almost surely, 2^105401047 is an apocalyptic number.

105401047 is a deficient number, since it is larger than the sum of its proper divisors (1988753).

105401047 is an equidigital number, since it uses as much as digits as its factorization.

105401047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988752.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 105401047 is about 10266.5012053766. The cubic root of 105401047 is about 472.3692752590.

Adding to 105401047 its reverse (740104501), we get a palindrome (845505548).

The spelling of 105401047 in words is "one hundred five million, four hundred one thousand, forty-seven".