78334141 has 4 divisors (see below), whose sum is σ = 78359932. Its totient is φ = 78308352.

The previous prime is 78334127. The next prime is 78334153. The reversal of 78334141 is 14143387.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14143387 = 29 ⋅487703.

It can be written as a sum of positive squares in 2 ways, for example, as 33108516 + 45225625 = 5754^2 + 6725^2 .

It is a cyclic number.

It is not a de Polignac number, because 78334141 - 2¹⁵ = 78301373 is a prime.

It is a super-2 number, since 2×78334141² = 12272475292415762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78334121) 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, 7620 + ... + 14653.

It is an arithmetic number, because the mean of its divisors is an integer number (19589983).

Almost surely, 2^78334141 is an apocalyptic number.

It is an amenable number.

78334141 is a deficient number, since it is larger than the sum of its proper divisors (25791).

78334141 is a wasteful number, since it uses less digits than its factorization.

78334141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25790.

The product of its digits is 8064, while the sum is 31.

The square root of 78334141 is about 8850.6576591799. The cubic root of 78334141 is about 427.8751145956.

The spelling of 78334141 in words is "seventy-eight million, three hundred thirty-four thousand, one hundred forty-one".