77070142 has 8 divisors (see below), whose sum is σ = 115848000. Its totient is φ = 38454144.

The previous prime is 77070073. The next prime is 77070157. The reversal of 77070142 is 24107077.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 77070142.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39267 + ... + 41182.

It is an arithmetic number, because the mean of its divisors is an integer number (14481000).

Almost surely, 2^77070142 is an apocalyptic number.

77070142 is a deficient number, since it is larger than the sum of its proper divisors (38777858).

77070142 is a wasteful number, since it uses less digits than its factorization.

77070142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80930.

The product of its (nonzero) digits is 2744, while the sum is 28.

The square root of 77070142 is about 8778.9601889973. The cubic root of 77070142 is about 425.5612276415.

The spelling of 77070142 in words is "seventy-seven million, seventy thousand, one hundred forty-two".