77143134 has 16 divisors (see below), whose sum is σ = 154639872. Its totient is φ = 25655448.

The previous prime is 77143123. The next prime is 77143147. The reversal of 77143134 is 43134177.

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, 11854 + ... + 17169.

It is an arithmetic number, because the mean of its divisors is an integer number (9664992).

Almost surely, 2^77143134 is an apocalyptic number.

77143134 is an abundant number, since it is smaller than the sum of its proper divisors (77496738).

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

77143134 is a wasteful number, since it uses less digits than its factorization.

77143134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29471.

The product of its digits is 7056, while the sum is 30.

The square root of 77143134 is about 8783.1164173088. The cubic root of 77143134 is about 425.6955328479.

It can be divided in two parts, 77143 and 134, that added together give a palindrome (77277).

The spelling of 77143134 in words is "seventy-seven million, one hundred forty-three thousand, one hundred thirty-four".