105252141 has 4 divisors (see below), whose sum is σ = 140336192. Its totient is φ = 70168092.

The previous prime is 105252137. The next prime is 105252143. The reversal of 105252141 is 141252501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 105252141 - 2² = 105252137 is a prime.

It is a super-2 number, since 2×105252141² = 22156026370167762, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105252143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17542021 + ... + 17542026.

It is an arithmetic number, because the mean of its divisors is an integer number (35084048).

Almost surely, 2^105252141 is an apocalyptic number.

It is an amenable number.

105252141 is a deficient number, since it is larger than the sum of its proper divisors (35084051).

105252141 is an equidigital number, since it uses as much as digits as its factorization.

105252141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35084050.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 105252141 is about 10259.2466097662. The cubic root of 105252141 is about 472.1467228553.

The spelling of 105252141 in words is "one hundred five million, two hundred fifty-two thousand, one hundred forty-one".