78274135 has 8 divisors (see below), whose sum is σ = 94029696. Its totient is φ = 62552160.

The previous prime is 78274123. The next prime is 78274159. The reversal of 78274135 is 53147287.

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

It is not a de Polignac number, because 78274135 - 2¹¹ = 78272087 is a prime.

It is a super-2 number, since 2×78274135² = 12253680419996450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78274094 and 78274103.

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, 2944 + ... + 12853.

It is an arithmetic number, because the mean of its divisors is an integer number (11753712).

Almost surely, 2^78274135 is an apocalyptic number.

78274135 is a deficient number, since it is larger than the sum of its proper divisors (15755561).

78274135 is a wasteful number, since it uses less digits than its factorization.

78274135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16793.

The product of its digits is 47040, while the sum is 37.

The square root of 78274135 is about 8847.2670921590. The cubic root of 78274135 is about 427.7658321783.

It can be divided in two parts, 78 and 274135, that multiplied together give a triangular number (21382530 = T₆₅₃₉).

The spelling of 78274135 in words is "seventy-eight million, two hundred seventy-four thousand, one hundred thirty-five".