61397142 has 16 divisors (see below), whose sum is σ = 123076800. Its totient is φ = 20418632.

The previous prime is 61397137. The next prime is 61397159. The reversal of 61397142 is 24179316.

61397142 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 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 7 ways as a sum of consecutive naturals, for example, 8892 + ... + 14207.

It is an arithmetic number, because the mean of its divisors is an integer number (7692300).

Almost surely, 2^61397142 is an apocalyptic number.

61397142 is an abundant number, since it is smaller than the sum of its proper divisors (61679658).

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

61397142 is a wasteful number, since it uses less digits than its factorization.

61397142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23547.

The product of its digits is 9072, while the sum is 33.

The square root of 61397142 is about 7835.6328397903. The cubic root of 61397142 is about 394.5021597547.

The spelling of 61397142 in words is "sixty-one million, three hundred ninety-seven thousand, one hundred forty-two".