105525631 has 2 divisors, whose sum is σ = 105525632. Its totient is φ = 105525630.

The previous prime is 105525617. The next prime is 105525653. The reversal of 105525631 is 136525501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105525631 - 2²³ = 97137023 is a prime.

It is a super-2 number, since 2×105525631² = 22271317595896322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105525631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105529631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52762815 + 52762816.

It is an arithmetic number, because the mean of its divisors is an integer number (52762816).

Almost surely, 2^105525631 is an apocalyptic number.

105525631 is a deficient number, since it is larger than the sum of its proper divisors (1).

105525631 is an equidigital number, since it uses as much as digits as its factorization.

105525631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 105525631 is about 10272.5669138731. The cubic root of 105525631 is about 472.5553154168. Note that the first 3 decimals are identical.

The spelling of 105525631 in words is "one hundred five million, five hundred twenty-five thousand, six hundred thirty-one".