78133165 has 8 divisors (see below), whose sum is σ = 102283488. Its totient is φ = 56824080.

The previous prime is 78133147. The next prime is 78133177. The reversal of 78133165 is 56133187.

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

It is not a de Polignac number, because 78133165 - 2¹³ = 78124973 is a prime.

It is a super-2 number, since 2×78133165² = 12209582945834450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78133165.

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, 710247 + ... + 710356.

It is an arithmetic number, because the mean of its divisors is an integer number (12785436).

Almost surely, 2^78133165 is an apocalyptic number.

It is an amenable number.

78133165 is a deficient number, since it is larger than the sum of its proper divisors (24150323).

78133165 is a wasteful number, since it uses less digits than its factorization.

78133165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420619.

The product of its digits is 15120, while the sum is 34.

The square root of 78133165 is about 8839.2966349139. The cubic root of 78133165 is about 427.5088789009.

The spelling of 78133165 in words is "seventy-eight million, one hundred thirty-three thousand, one hundred sixty-five".