105123542 has 32 divisors (see below), whose sum is σ = 172523520. Its totient is φ = 47856960.

The previous prime is 105123517. The next prime is 105123553. The reversal of 105123542 is 245321501.

It is a super-2 number, since 2×105123542² = 22101918165251528, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274283 + ... + 274665.

It is an arithmetic number, because the mean of its divisors is an integer number (5391360).

Almost surely, 2^105123542 is an apocalyptic number.

105123542 is a deficient number, since it is larger than the sum of its proper divisors (67399978).

105123542 is a wasteful number, since it uses less digits than its factorization.

105123542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 105123542 is about 10252.9772261524. The cubic root of 105123542 is about 471.9543519725.

The spelling of 105123542 in words is "one hundred five million, one hundred twenty-three thousand, five hundred forty-two".