61444043 has 4 divisors (see below), whose sum is σ = 64677960. Its totient is φ = 58210128.

The previous prime is 61444037. The next prime is 61444051. The reversal of 61444043 is 34044416.

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 61444043 - 2⁶ = 61443979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61444073) 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, 1616930 + ... + 1616967.

It is an arithmetic number, because the mean of its divisors is an integer number (16169490).

Almost surely, 2^61444043 is an apocalyptic number.

61444043 is a deficient number, since it is larger than the sum of its proper divisors (3233917).

61444043 is a wasteful number, since it uses less digits than its factorization.

61444043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3233916.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 61444043 is about 7838.6250707634. The cubic root of 61444043 is about 394.6025869942.

Adding to 61444043 its reverse (34044416), we get a palindrome (95488459).

The spelling of 61444043 in words is "sixty-one million, four hundred forty-four thousand, forty-three".