61306125142 has 16 divisors (see below), whose sum is σ = 92357880912. Its totient is φ = 30520212480.

The previous prime is 61306125119. The next prime is 61306125151. The reversal of 61306125142 is 24152160316.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4018533 + ... + 4033759.

It is an arithmetic number, because the mean of its divisors is an integer number (5772367557).

Almost surely, 2^61306125142 is an apocalyptic number.

61306125142 is a deficient number, since it is larger than the sum of its proper divisors (31051755770).

61306125142 is a wasteful number, since it uses less digits than its factorization.

61306125142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23823.

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 61306125142 its reverse (24152160316), we get a palindrome (85458285458).

The spelling of 61306125142 in words is "sixty-one billion, three hundred six million, one hundred twenty-five thousand, one hundred forty-two".