61510042 has 8 divisors (see below), whose sum is σ = 100652832. Its totient is φ = 27959100.

The previous prime is 61510039. The next prime is 61510093. The reversal of 61510042 is 24001516.

61510042 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 an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1397934 + ... + 1397977.

It is an arithmetic number, because the mean of its divisors is an integer number (12581604).

Almost surely, 2^61510042 is an apocalyptic number.

61510042 is a deficient number, since it is larger than the sum of its proper divisors (39142790).

61510042 is a wasteful number, since it uses less digits than its factorization.

61510042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2795924.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 61510042 is about 7842.8337990805. The cubic root of 61510042 is about 394.7438214994.

Adding to 61510042 its reverse (24001516), we get a palindrome (85511558).

The spelling of 61510042 in words is "sixty-one million, five hundred ten thousand, forty-two".