106644631 has 2 divisors, whose sum is σ = 106644632. Its totient is φ = 106644630.

The previous prime is 106644623. The next prime is 106644641. The reversal of 106644631 is 136446601.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 106644631 - 2³ = 106644623 is a prime.

It is a super-2 number, since 2×106644631² = 22746154642252322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 106644593 and 106644602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106644641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53322315 + 53322316.

It is an arithmetic number, because the mean of its divisors is an integer number (53322316).

Almost surely, 2^106644631 is an apocalyptic number.

106644631 is a deficient number, since it is larger than the sum of its proper divisors (1).

106644631 is an equidigital number, since it uses as much as digits as its factorization.

106644631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 106644631 is about 10326.8887376596. Note that the first 3 decimals coincide. The cubic root of 106644631 is about 474.2197806349.

The spelling of 106644631 in words is "one hundred six million, six hundred forty-four thousand, six hundred thirty-one".