105249236 has 12 divisors (see below), whose sum is σ = 190537620. Its totient is φ = 50809920.

The previous prime is 105249223. The next prime is 105249239. The reversal of 105249236 is 632942501.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 76562500 + 28686736 = 8750^2 + 5356^2 .

It is a super-2 number, since 2×105249236² = 22154803357167392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105249239) 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, 453545 + ... + 453776.

It is an arithmetic number, because the mean of its divisors is an integer number (15878135).

Almost surely, 2^105249236 is an apocalyptic number.

It is an amenable number.

105249236 is a deficient number, since it is larger than the sum of its proper divisors (85288384).

105249236 is a wasteful number, since it uses less digits than its factorization.

105249236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907354 (or 907352 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 105249236 is about 10259.1050291924. The cubic root of 105249236 is about 472.1423790043.

The spelling of 105249236 in words is "one hundred five million, two hundred forty-nine thousand, two hundred thirty-six".