101663437 has 4 divisors (see below), whose sum is σ = 101703420. Its totient is φ = 101623456.

The previous prime is 101663413. The next prime is 101663447. The reversal of 101663437 is 734366101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 100520676 + 1142761 = 10026^2 + 1069^2 .

It is a cyclic number.

It is not a de Polignac number, because 101663437 - 2¹⁹ = 101139149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101663399 and 101663408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101663407) 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 3 ways as a sum of consecutive naturals, for example, 15898 + ... + 21355.

It is an arithmetic number, because the mean of its divisors is an integer number (25425855).

Almost surely, 2^101663437 is an apocalyptic number.

It is an amenable number.

101663437 is a deficient number, since it is larger than the sum of its proper divisors (39983).

101663437 is an equidigital number, since it uses as much as digits as its factorization.

101663437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39982.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 101663437 is about 10082.8288193344. The cubic root of 101663437 is about 466.7184069050.

The spelling of 101663437 in words is "one hundred one million, six hundred sixty-three thousand, four hundred thirty-seven".