61444071 has 12 divisors (see below), whose sum is σ = 95579848. Its totient is φ = 37811664.

The previous prime is 61444051. The next prime is 61444073. The reversal of 61444071 is 17044416.

61444071 is a `hidden beast` number, since 614 + 4 + 40 + 7 + 1 = 666.

It is not a de Polignac number, because 61444071 - 2⁶ = 61444007 is a prime.

It is a super-2 number, since 2×61444071² = 7550747722106082, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61444073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 262465 + ... + 262698.

Almost surely, 2^61444071 is an apocalyptic number.

61444071 is a deficient number, since it is larger than the sum of its proper divisors (34135777).

61444071 is a wasteful number, since it uses less digits than its factorization.

61444071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525182 (or 525179 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 61444071 is about 7838.6268567907. The cubic root of 61444071 is about 394.6026469342.

Adding to 61444071 its reverse (17044416), we get a palindrome (78488487).

The spelling of 61444071 in words is "sixty-one million, four hundred forty-four thousand, seventy-one".