78142841 has 8 divisors (see below), whose sum is σ = 89691264. Its totient is φ = 66690720.

The previous prime is 78142819. The next prime is 78142861. The reversal of 78142841 is 14824187.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78142841 is a prime.

It is a super-2 number, since 2×78142841² = 12212607199102562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78142861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22325 + ... + 25586.

It is an arithmetic number, because the mean of its divisors is an integer number (11211408).

Almost surely, 2^78142841 is an apocalyptic number.

It is an amenable number.

78142841 is a deficient number, since it is larger than the sum of its proper divisors (11548423).

78142841 is a wasteful number, since it uses less digits than its factorization.

78142841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48151.

The product of its digits is 14336, while the sum is 35.

The square root of 78142841 is about 8839.8439465864. The cubic root of 78142841 is about 427.5265257186.

The spelling of 78142841 in words is "seventy-eight million, one hundred forty-two thousand, eight hundred forty-one".