61043719 has 8 divisors (see below), whose sum is σ = 70510608. Its totient is φ = 52229760.

The previous prime is 61043699. The next prime is 61043779. The reversal of 61043719 is 91734016.

It is a happy number.

61043719 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61043719 - 2⁵ = 61043687 is a prime.

It is a super-2 number, since 2×61043719² = 7452671258701922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61043779) 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 in 7 ways as a sum of consecutive naturals, for example, 163032 + ... + 163405.

It is an arithmetic number, because the mean of its divisors is an integer number (8813826).

Almost surely, 2^61043719 is an apocalyptic number.

61043719 is a deficient number, since it is larger than the sum of its proper divisors (9466889).

61043719 is a wasteful number, since it uses less digits than its factorization.

61043719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326465.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 61043719 is about 7813.0479967808. The cubic root of 61043719 is about 393.7437394150.

The spelling of 61043719 in words is "sixty-one million, forty-three thousand, seven hundred nineteen".