77243134 has 16 divisors (see below), whose sum is σ = 120476160. Its totient is φ = 37102680.

The previous prime is 77243077. The next prime is 77243147. The reversal of 77243134 is 43134277.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 77243096 and 77243105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4137 + ... + 13099.

It is an arithmetic number, because the mean of its divisors is an integer number (7529760).

Almost surely, 2^77243134 is an apocalyptic number.

77243134 is a deficient number, since it is larger than the sum of its proper divisors (43233026).

77243134 is a wasteful number, since it uses less digits than its factorization.

77243134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9135.

The product of its digits is 14112, while the sum is 31.

The square root of 77243134 is about 8788.8073138510. The cubic root of 77243134 is about 425.8793952784.

It can be divided in two parts, 77243 and 134, that added together give a palindrome (77377).

The spelling of 77243134 in words is "seventy-seven million, two hundred forty-three thousand, one hundred thirty-four".