105661534 has 16 divisors (see below), whose sum is σ = 173082096. Its totient is φ = 47977600.

The previous prime is 105661519. The next prime is 105661553. The reversal of 105661534 is 435166501.

It is a super-2 number, since 2×105661534² = 22328719534466312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105661496 and 105661505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26214 + ... + 29974.

It is an arithmetic number, because the mean of its divisors is an integer number (10817631).

Almost surely, 2^105661534 is an apocalyptic number.

105661534 is a deficient number, since it is larger than the sum of its proper divisors (67420562).

105661534 is a wasteful number, since it uses less digits than its factorization.

105661534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5051.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 105661534 is about 10279.1796365274. The cubic root of 105661534 is about 472.7580912242.

It can be divided in two parts, 10566 and 1534, that added together give a square (12100 = 110²).

The spelling of 105661534 in words is "one hundred five million, six hundred sixty-one thousand, five hundred thirty-four".