105142101 has 8 divisors (see below), whose sum is σ = 142487904. Its totient is φ = 68945520.

The previous prime is 105142099. The next prime is 105142129. The reversal of 105142101 is 101241501.

It is a happy number.

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

It is not a de Polignac number, because 105142101 - 2¹ = 105142099 is a prime.

It is a super-2 number, since 2×105142101² = 22109722805388402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105142151) 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, 287091 + ... + 287456.

It is an arithmetic number, because the mean of its divisors is an integer number (17810988).

Almost surely, 2^105142101 is an apocalyptic number.

It is an amenable number.

105142101 is a deficient number, since it is larger than the sum of its proper divisors (37345803).

105142101 is an equidigital number, since it uses as much as digits as its factorization.

105142101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574611.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 105142101 is about 10253.8822404005. The cubic root of 105142101 is about 471.9821240118.

Adding to 105142101 its reverse (101241501), we get a palindrome (206383602).

The spelling of 105142101 in words is "one hundred five million, one hundred forty-two thousand, one hundred one".