105403531 has 2 divisors, whose sum is σ = 105403532. Its totient is φ = 105403530.

The previous prime is 105403513. The next prime is 105403577. The reversal of 105403531 is 135304501.

It is a happy number.

Together with previous prime (105403513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105403531 is a prime.

It is a super-2 number, since 2×105403531² = 22219808694535922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105403031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52701765 + 52701766.

It is an arithmetic number, because the mean of its divisors is an integer number (52701766).

Almost surely, 2^105403531 is an apocalyptic number.

105403531 is a deficient number, since it is larger than the sum of its proper divisors (1).

105403531 is an equidigital number, since it uses as much as digits as its factorization.

105403531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 105403531 is about 10266.6221806396. The cubic root of 105403531 is about 472.3729860256.

The spelling of 105403531 in words is "one hundred five million, four hundred three thousand, five hundred thirty-one".