61072742 has 8 divisors (see below), whose sum is σ = 91659600. Its totient is φ = 30519544.

The previous prime is 61072741. The next prime is 61072747. The reversal of 61072742 is 24727016.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61072741) 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, 3242 + ... + 11517.

It is an arithmetic number, because the mean of its divisors is an integer number (11457450).

Almost surely, 2^61072742 is an apocalyptic number.

61072742 is a deficient number, since it is larger than the sum of its proper divisors (30586858).

61072742 is a wasteful number, since it uses less digits than its factorization.

61072742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16830.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 61072742 is about 7814.9051177861. The cubic root of 61072742 is about 393.8061308406.

Adding to 61072742 its reverse (24727016), we get a palindrome (85799758).

The spelling of 61072742 in words is "sixty-one million, seventy-two thousand, seven hundred forty-two".