105640153226 has 8 divisors (see below), whose sum is σ = 159469531140. Its totient is φ = 52483642848.

The previous prime is 105640153217. The next prime is 105640153291. The reversal of 105640153226 is 622351046501.

It can be written as a sum of positive squares in 2 ways, for example, as 93528930625 + 12111222601 = 305825^2 + 110051^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×105640153226² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168216491 + ... + 168217118.

Almost surely, 2^105640153226 is an apocalyptic number.

105640153226 is a deficient number, since it is larger than the sum of its proper divisors (53829377914).

105640153226 is a wasteful number, since it uses less digits than its factorization.

105640153226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336433768.

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 105640153226 its reverse (622351046501), we get a palindrome (727991199727).

The spelling of 105640153226 in words is "one hundred five billion, six hundred forty million, one hundred fifty-three thousand, two hundred twenty-six".