101636645 has 16 divisors (see below), whose sum is σ = 135311040. Its totient is φ = 72662400.

The previous prime is 101636641. The next prime is 101636651. The reversal of 101636645 is 546636101.

It is not a de Polignac number, because 101636645 - 2² = 101636641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101636641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12416 + ... + 18905.

It is an arithmetic number, because the mean of its divisors is an integer number (8456940).

Almost surely, 2^101636645 is an apocalyptic number.

It is an amenable number.

101636645 is a deficient number, since it is larger than the sum of its proper divisors (33674395).

101636645 is a wasteful number, since it uses less digits than its factorization.

101636645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31396.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 101636645 is about 10081.5001363884. The cubic root of 101636645 is about 466.6774042314.

The spelling of 101636645 in words is "one hundred one million, six hundred thirty-six thousand, six hundred forty-five".