105521432 has 8 divisors (see below), whose sum is σ = 197852700. Its totient is φ = 52760712.

The previous prime is 105521393. The next prime is 105521443. The reversal of 105521432 is 234125501.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×105521432² = 22269545222661248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105521398 and 105521407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6595082 + ... + 6595097.

Almost surely, 2^105521432 is an apocalyptic number.

It is an amenable number.

105521432 is a deficient number, since it is larger than the sum of its proper divisors (92331268).

105521432 is a wasteful number, since it uses less digits than its factorization.

105521432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13190185 (or 13190181 counting only the distinct ones).

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

The square root of 105521432 is about 10272.3625325433. The cubic root of 105521432 is about 472.5490474733.

Adding to 105521432 its reverse (234125501), we get a palindrome (339646933).

The spelling of 105521432 in words is "one hundred five million, five hundred twenty-one thousand, four hundred thirty-two".