105240052 has 12 divisors (see below), whose sum is σ = 185235876. Its totient is φ = 52315520.

The previous prime is 105240017. The next prime is 105240061. The reversal of 105240052 is 250042501.

It can be written as a sum of positive squares in 2 ways, for example, as 65221776 + 40018276 = 8076^2 + 6326^2 .

It is a super-2 number, since 2×105240052² = 22150937089925408, which contains 22 as substring.

It is a congruent 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, 75349 + ... + 76732.

It is an arithmetic number, because the mean of its divisors is an integer number (15436323).

Almost surely, 2^105240052 is an apocalyptic number.

It is an amenable number.

105240052 is a deficient number, since it is larger than the sum of its proper divisors (79995824).

105240052 is a wasteful number, since it uses less digits than its factorization.

105240052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152258 (or 152256 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 105240052 is about 10258.6574170307. The cubic root of 105240052 is about 472.1286456291.

Adding to 105240052 its reverse (250042501), we get a palindrome (355282553).

The spelling of 105240052 in words is "one hundred five million, two hundred forty thousand, fifty-two".