77114142 has 144 divisors (see below), whose sum is σ = 212874480. Its totient is φ = 20030976.

The previous prime is 77114137. The next prime is 77114171. The reversal of 77114142 is 24141177.

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 71 ways as a sum of consecutive naturals, for example, 554709 + ... + 554847.

It is an arithmetic number, because the mean of its divisors is an integer number (1478295).

Almost surely, 2^77114142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77114142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106437240).

77114142 is an abundant number, since it is smaller than the sum of its proper divisors (135760338).

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

77114142 is a wasteful number, since it uses less digits than its factorization.

77114142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 205 counting only the distinct ones).

The product of its digits is 1568, while the sum is 27.

The square root of 77114142 is about 8781.4658229706. The cubic root of 77114142 is about 425.6421977435.

The spelling of 77114142 in words is "seventy-seven million, one hundred fourteen thousand, one hundred forty-two".