105140245 has 32 divisors (see below), whose sum is σ = 151418880. Its totient is φ = 68523840.

The previous prime is 105140227. The next prime is 105140261. The reversal of 105140245 is 542041501.

It is not a de Polignac number, because 105140245 - 2⁹ = 105139733 is a prime.

It is a super-2 number, since 2×105140245² = 22108942237320050, 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 31 ways as a sum of consecutive naturals, for example, 169546 + ... + 170164.

It is an arithmetic number, because the mean of its divisors is an integer number (4731840).

Almost surely, 2^105140245 is an apocalyptic number.

It is an amenable number.

105140245 is a deficient number, since it is larger than the sum of its proper divisors (46278635).

105140245 is a wasteful number, since it uses less digits than its factorization.

105140245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 105140245 is about 10253.7917376939. The cubic root of 105140245 is about 471.9793468053.

Adding to 105140245 its reverse (542041501), we get a palindrome (647181746).

The spelling of 105140245 in words is "one hundred five million, one hundred forty thousand, two hundred forty-five".