105430531 has 2 divisors, whose sum is σ = 105430532. Its totient is φ = 105430530.

The previous prime is 105430529. The next prime is 105430537. The reversal of 105430531 is 135034501.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105430531 - 2¹ = 105430529 is a prime.

It is a super-2 number, since 2×105430531² = 22231193733883922, which contains 22 as substring.

Together with 105430529, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (105430537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52715265 + 52715266.

It is an arithmetic number, because the mean of its divisors is an integer number (52715266).

Almost surely, 2^105430531 is an apocalyptic number.

105430531 is a deficient number, since it is larger than the sum of its proper divisors (1).

105430531 is an equidigital number, since it uses as much as digits as its factorization.

105430531 is an evil number, because the sum of its binary digits is even.

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

The square root of 105430531 is about 10267.9370372047. The cubic root of 105430531 is about 472.4133166851.

The spelling of 105430531 in words is "one hundred five million, four hundred thirty thousand, five hundred thirty-one".