10405631 has 2 divisors, whose sum is σ = 10405632. Its totient is φ = 10405630.

The previous prime is 10405607. The next prime is 10405651. The reversal of 10405631 is 13650401.

It is an a-pointer prime, because the next prime (10405651) can be obtained adding 10405631 to its sum of digits (20).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10405631 - 2⁶ = 10405567 is a prime.

It is a super-2 number, since 2×10405631² = 216554313016322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10405601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5202815 + 5202816.

It is an arithmetic number, because the mean of its divisors is an integer number (5202816).

Almost surely, 2^10405631 is an apocalyptic number.

10405631 is a deficient number, since it is larger than the sum of its proper divisors (1).

10405631 is an equidigital number, since it uses as much as digits as its factorization.

10405631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 10405631 is about 3225.7760306630. The cubic root of 10405631 is about 218.3179645897.

The spelling of 10405631 in words is "ten million, four hundred five thousand, six hundred thirty-one".