37445 has 4 divisors (see below), whose sum is σ = 44940. Its totient is φ = 29952.

The previous prime is 37441. The next prime is 37447. The reversal of 37445 is 54473.

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 16129 + 21316 = 127^2 + 146^2 .

It is a cyclic number.

It is not a de Polignac number, because 37445 - 2² = 37441 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 37445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37441) 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, 3740 + ... + 3749.

It is an arithmetic number, because the mean of its divisors is an integer number (11235).

2³⁷⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

37445 is a deficient number, since it is larger than the sum of its proper divisors (7495).

37445 is an equidigital number, since it uses as much as digits as its factorization.

37445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7494.

The product of its digits is 1680, while the sum is 23.

The square root of 37445 is about 193.5071058127. The cubic root of 37445 is about 33.4552755809.

The spelling of 37445 in words is "thirty-seven thousand, four hundred forty-five".