105812157 has 8 divisors (see below), whose sum is σ = 153908640. Its totient is φ = 64128560.

The previous prime is 105812141. The next prime is 105812257. The reversal of 105812157 is 751218501.

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 105812157 - 2⁴ = 105812141 is a prime.

It is a super-2 number, since 2×105812157² = 22392425137985298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105812107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1603182 + ... + 1603247.

It is an arithmetic number, because the mean of its divisors is an integer number (19238580).

Almost surely, 2^105812157 is an apocalyptic number.

It is an amenable number.

105812157 is a deficient number, since it is larger than the sum of its proper divisors (48096483).

105812157 is a wasteful number, since it uses less digits than its factorization.

105812157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3206443.

The product of its (nonzero) digits is 2800, while the sum is 30.

The square root of 105812157 is about 10286.5036334024. The cubic root of 105812157 is about 472.9826271542.

The spelling of 105812157 in words is "one hundred five million, eight hundred twelve thousand, one hundred fifty-seven".