61073543 has 8 divisors (see below), whose sum is σ = 65502000. Its totient is φ = 56766528.

The previous prime is 61073531. The next prime is 61073591. The reversal of 61073543 is 34537016.

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

It is not a de Polignac number, because 61073543 - 2⁴ = 61073527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61073443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29318 + ... + 31331.

It is an arithmetic number, because the mean of its divisors is an integer number (8187750).

Almost surely, 2^61073543 is an apocalyptic number.

61073543 is a deficient number, since it is larger than the sum of its proper divisors (4428457).

61073543 is a wasteful number, since it uses less digits than its factorization.

61073543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60721.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 61073543 is about 7814.9563658411. The cubic root of 61073543 is about 393.8078524888.

It can be divided in two parts, 61073 and 543, that added together give a palindrome (61616).

The spelling of 61073543 in words is "sixty-one million, seventy-three thousand, five hundred forty-three".