61444003 has 4 divisors (see below), whose sum is σ = 61460208. Its totient is φ = 61427800.

The previous prime is 61443989. The next prime is 61444007. The reversal of 61444003 is 30044416.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 61444003 - 2¹³ = 61435811 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61444007) 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, 978 + ... + 11128.

It is an arithmetic number, because the mean of its divisors is an integer number (15365052).

Almost surely, 2^61444003 is an apocalyptic number.

61444003 is a deficient number, since it is larger than the sum of its proper divisors (16205).

61444003 is a wasteful number, since it uses less digits than its factorization.

61444003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16204.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 61444003 is about 7838.6225192951. The cubic root of 61444003 is about 394.6025013656.

Adding to 61444003 its reverse (30044416), we get a palindrome (91488419).

The spelling of 61444003 in words is "sixty-one million, four hundred forty-four thousand, three".