105112457 has 8 divisors (see below), whose sum is σ = 106030080. Its totient is φ = 104199040.

The previous prime is 105112433. The next prime is 105112493. The reversal of 105112457 is 754211501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 105112457 - 2¹⁸ = 104850313 is a prime.

It is a super-2 number, since 2×105112457² = 22097257233153698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105112957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66644 + ... + 68202.

It is an arithmetic number, because the mean of its divisors is an integer number (13253760).

Almost surely, 2^105112457 is an apocalyptic number.

It is an amenable number.

105112457 is a deficient number, since it is larger than the sum of its proper divisors (917623).

105112457 is a wasteful number, since it uses less digits than its factorization.

105112457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2103.

The product of its (nonzero) digits is 1400, while the sum is 26.

The square root of 105112457 is about 10252.4366372097. The cubic root of 105112457 is about 471.9377626092.

Adding to 105112457 its reverse (754211501), we get a palindrome (859323958).

The spelling of 105112457 in words is "one hundred five million, one hundred twelve thousand, four hundred fifty-seven".