78945134 has 8 divisors (see below), whose sum is σ = 122501160. Its totient is φ = 38111416.

The previous prime is 78945121. The next prime is 78945137. The reversal of 78945134 is 43154987.

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

It is a junction number, because it is equal to n+sod(n) for n = 78945091 and 78945100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78945137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 680504 + ... + 680619.

It is an arithmetic number, because the mean of its divisors is an integer number (15312645).

Almost surely, 2^78945134 is an apocalyptic number.

78945134 is a deficient number, since it is larger than the sum of its proper divisors (43556026).

78945134 is a wasteful number, since it uses less digits than its factorization.

78945134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361154.

The product of its digits is 120960, while the sum is 41.

The square root of 78945134 is about 8885.1074276004. The cubic root of 78945134 is about 428.9846858366.

The spelling of 78945134 in words is "seventy-eight million, nine hundred forty-five thousand, one hundred thirty-four".