105423513 has 16 divisors (see below), whose sum is σ = 157960320. Its totient is φ = 62054784.

The previous prime is 105423509. The next prime is 105423541. The reversal of 105423513 is 315324501.

It is not a de Polignac number, because 105423513 - 2² = 105423509 is a prime.

It is a super-2 number, since 2×105423513² = 22228234186522338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105423503) 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 15 ways as a sum of consecutive naturals, for example, 57868 + ... + 59661.

It is an arithmetic number, because the mean of its divisors is an integer number (9872520).

Almost surely, 2^105423513 is an apocalyptic number.

105423513 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

105423513 is a deficient number, since it is larger than the sum of its proper divisors (52536807).

105423513 is a wasteful number, since it uses less digits than its factorization.

105423513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117568.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 105423513 is about 10267.5952880896. The cubic root of 105423513 is about 472.4028343635.

The spelling of 105423513 in words is "one hundred five million, four hundred twenty-three thousand, five hundred thirteen".