105245087 has 4 divisors (see below), whose sum is σ = 105313320. Its totient is φ = 105176856.

The previous prime is 105245071. The next prime is 105245111. The reversal of 105245087 is 780542501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 780542501 = 53 ⋅14727217.

It is a cyclic number.

It is not a de Polignac number, because 105245087 - 2⁴ = 105245071 is a prime.

It is a super-2 number, since 2×105245087² = 22153056675275138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105245887) 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, 31748 + ... + 34905.

It is an arithmetic number, because the mean of its divisors is an integer number (26328330).

Almost surely, 2^105245087 is an apocalyptic number.

105245087 is a deficient number, since it is larger than the sum of its proper divisors (68233).

105245087 is an equidigital number, since it uses as much as digits as its factorization.

105245087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68232.

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 105245087 is about 10258.9028165784. The cubic root of 105245087 is about 472.1361748596.

Adding to 105245087 its reverse (780542501), we get a palindrome (885787588).

The spelling of 105245087 in words is "one hundred five million, two hundred forty-five thousand, eighty-seven".