105542534 has 4 divisors (see below), whose sum is σ = 158313804. Its totient is φ = 52771266.

The previous prime is 105542509. The next prime is 105542539. The reversal of 105542534 is 435245501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 435245501 = 631 ⋅689771.

It is a super-2 number, since 2×105542534² = 22278452966282312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105542497 and 105542506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105542539) 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 as a sum of consecutive naturals, namely, 26385632 + ... + 26385635.

It is an arithmetic number, because the mean of its divisors is an integer number (39578451).

Almost surely, 2^105542534 is an apocalyptic number.

105542534 is a deficient number, since it is larger than the sum of its proper divisors (52771270).

105542534 is an equidigital number, since it uses as much as digits as its factorization.

105542534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52771269.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 105542534 is about 10273.3896061621. The cubic root of 105542534 is about 472.5805452306.

The spelling of 105542534 in words is "one hundred five million, five hundred forty-two thousand, five hundred thirty-four".