105242407 has 4 divisors (see below), whose sum is σ = 105289416. Its totient is φ = 105195400.

The previous prime is 105242383. The next prime is 105242477. The reversal of 105242407 is 704242501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 105242407 - 2¹⁵ = 105209639 is a prime.

It is a super-2 number, since 2×105242407² = 22151928462307298, 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 (105242477) 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, 19969 + ... + 24682.

It is an arithmetic number, because the mean of its divisors is an integer number (26322354).

Almost surely, 2^105242407 is an apocalyptic number.

105242407 is a deficient number, since it is larger than the sum of its proper divisors (47009).

105242407 is an equidigital number, since it uses as much as digits as its factorization.

105242407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47008.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 105242407 is about 10258.7721974903. The cubic root of 105242407 is about 472.1321672752.

Adding to 105242407 its reverse (704242501), we get a palindrome (809484908).

The spelling of 105242407 in words is "one hundred five million, two hundred forty-two thousand, four hundred seven".