101664237 has 4 divisors (see below), whose sum is σ = 135552320. Its totient is φ = 67776156.

The previous prime is 101664203. The next prime is 101664239. The reversal of 101664237 is 732466101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 101664237 - 2¹¹ = 101662189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101664239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16944037 + ... + 16944042.

It is an arithmetic number, because the mean of its divisors is an integer number (33888080).

Almost surely, 2^101664237 is an apocalyptic number.

It is an amenable number.

101664237 is a deficient number, since it is larger than the sum of its proper divisors (33888083).

101664237 is an equidigital number, since it uses as much as digits as its factorization.

101664237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33888082.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 101664237 is about 10082.8684906628. The cubic root of 101664237 is about 466.7196311201.

The spelling of 101664237 in words is "one hundred one million, six hundred sixty-four thousand, two hundred thirty-seven".