105640522 has 8 divisors (see below), whose sum is σ = 170650116. Its totient is φ = 48757152.

The previous prime is 105640519. The next prime is 105640523. The reversal of 105640522 is 225046501.

It can be written as a sum of positive squares in 2 ways, for example, as 97002801 + 8637721 = 9849^2 + 2939^2 .

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

It is a super-2 number, since 2×105640522² = 22319839776864968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105640523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2031523 + ... + 2031574.

Almost surely, 2^105640522 is an apocalyptic number.

105640522 is a deficient number, since it is larger than the sum of its proper divisors (65009594).

105640522 is a wasteful number, since it uses less digits than its factorization.

105640522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4063112.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 105640522 is about 10278.1575197114. The cubic root of 105640522 is about 472.7267513689.

The spelling of 105640522 in words is "one hundred five million, six hundred forty thousand, five hundred twenty-two".