105631651 has 2 divisors, whose sum is σ = 105631652. Its totient is φ = 105631650.

The previous prime is 105631637. The next prime is 105631667. The reversal of 105631651 is 156136501.

It is a weak prime.

It is an emirp because it is prime and its reverse (156136501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 105631651 - 2⁵ = 105631619 is a prime.

It is a super-2 number, since 2×105631651² = 22316091385971602, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105631451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52815825 + 52815826.

It is an arithmetic number, because the mean of its divisors is an integer number (52815826).

Almost surely, 2^105631651 is an apocalyptic number.

105631651 is a deficient number, since it is larger than the sum of its proper divisors (1).

105631651 is an equidigital number, since it uses as much as digits as its factorization.

105631651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 105631651 is about 10277.7259644340. The cubic root of 105631651 is about 472.7135188317.

The spelling of 105631651 in words is "one hundred five million, six hundred thirty-one thousand, six hundred fifty-one".