105151243 has 4 divisors (see below), whose sum is σ = 105179040. Its totient is φ = 105123448.

The previous prime is 105151229. The next prime is 105151247. The reversal of 105151243 is 342151501.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105151243 is a prime.

It is a super-2 number, since 2×105151243² = 22113567808890098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105151247) 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 3 ways as a sum of consecutive naturals, for example, 7123 + ... + 16156.

It is an arithmetic number, because the mean of its divisors is an integer number (26294760).

Almost surely, 2^105151243 is an apocalyptic number.

105151243 is a deficient number, since it is larger than the sum of its proper divisors (27797).

105151243 is an equidigital number, since it uses as much as digits as its factorization.

105151243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27796.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 105151243 is about 10254.3280130879. The cubic root of 105151243 is about 471.9958030724.

The spelling of 105151243 in words is "one hundred five million, one hundred fifty-one thousand, two hundred forty-three".