105404142253 has 4 divisors (see below), whose sum is σ = 107392899708. Its totient is φ = 103415384800.

The previous prime is 105404142247. The next prime is 105404142257. The reversal of 105404142253 is 352241404501.

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

It can be written as a sum of positive squares in 2 ways, for example, as 56692562404 + 48711579849 = 238102^2 + 220707^2 .

It is a cyclic number.

It is not a de Polignac number, because 105404142253 - 2¹³ = 105404134061 is a prime.

It is a super-2 number, since 2×105404142253² (a number of 23 digits) 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 (105404142257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 994378648 + ... + 994378753.

It is an arithmetic number, because the mean of its divisors is an integer number (26848224927).

Almost surely, 2^105404142253 is an apocalyptic number.

It is an amenable number.

105404142253 is a deficient number, since it is larger than the sum of its proper divisors (1988757455).

105404142253 is an equidigital number, since it uses as much as digits as its factorization.

105404142253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988757454.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 105404142253 its reverse (352241404501), we get a palindrome (457645546754).

The spelling of 105404142253 in words is "one hundred five billion, four hundred four million, one hundred forty-two thousand, two hundred fifty-three".