37331641 has 2 divisors, whose sum is σ = 37331642. Its totient is φ = 37331640.

The previous prime is 37331639. The next prime is 37331669. The reversal of 37331641 is 14613373.

It is a happy number.

37331641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (37331669) can be obtained adding 37331641 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28355625 + 8976016 = 5325^2 + 2996^2 .

It is an emirp because it is prime and its reverse (14613373) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 37331641 - 2¹ = 37331639 is a prime.

Together with 37331639, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (37331621) 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 as a sum of consecutive naturals, namely, 18665820 + 18665821.

It is an arithmetic number, because the mean of its divisors is an integer number (18665821).

Almost surely, 2^37331641 is an apocalyptic number.

It is an amenable number.

37331641 is a deficient number, since it is larger than the sum of its proper divisors (1).

37331641 is an equidigital number, since it uses as much as digits as its factorization.

37331641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 28.

The square root of 37331641 is about 6109.9624385097. The cubic root of 37331641 is about 334.2148121528.

The spelling of 37331641 in words is "thirty-seven million, three hundred thirty-one thousand, six hundred forty-one".