78314158 has 16 divisors (see below), whose sum is σ = 127478736. Its totient is φ = 35867520.

The previous prime is 78314147. The next prime is 78314221. The reversal of 78314158 is 85141387.

It is a super-2 number, since 2×78314158² = 12266214686497928, which contains 22 as substring.

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, 8091 + ... + 14902.

It is an arithmetic number, because the mean of its divisors is an integer number (7967421).

Almost surely, 2^78314158 is an apocalyptic number.

78314158 is a deficient number, since it is larger than the sum of its proper divisors (49164578).

78314158 is a wasteful number, since it uses less digits than its factorization.

78314158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23139.

The product of its digits is 26880, while the sum is 37.

The square root of 78314158 is about 8849.5286880150. The cubic root of 78314158 is about 427.8387279257.

It can be divided in two parts, 783 and 14158, that added together give a palindrome (14941).

The spelling of 78314158 in words is "seventy-eight million, three hundred fourteen thousand, one hundred fifty-eight".