61061142 has 16 divisors (see below), whose sum is σ = 123796080. Its totient is φ = 20074752.

The previous prime is 61061129. The next prime is 61061149. The reversal of 61061142 is 24116016.

61061142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61061149) 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, 69267 + ... + 70142.

It is an arithmetic number, because the mean of its divisors is an integer number (7737255).

Almost surely, 2^61061142 is an apocalyptic number.

61061142 is an abundant number, since it is smaller than the sum of its proper divisors (62734938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61061142 is a wasteful number, since it uses less digits than its factorization.

61061142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139487.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 61061142 is about 7814.1629110225. The cubic root of 61061142 is about 393.7811964197.

Adding to 61061142 its reverse (24116016), we get a palindrome (85177158).

The spelling of 61061142 in words is "sixty-one million, sixty-one thousand, one hundred forty-two".