78275141 has 8 divisors (see below), whose sum is σ = 93346944. Its totient is φ = 64175760.

The previous prime is 78275137. The next prime is 78275149. The reversal of 78275141 is 14157287.

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

It is a cyclic number.

It is not a de Polignac number, because 78275141 - 2² = 78275137 is a prime.

It is a super-2 number, since 2×78275141² = 12253995397139762, 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 (78275149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242930 + ... + 243251.

It is an arithmetic number, because the mean of its divisors is an integer number (11668368).

Almost surely, 2^78275141 is an apocalyptic number.

It is an amenable number.

78275141 is a deficient number, since it is larger than the sum of its proper divisors (15071803).

78275141 is a wasteful number, since it uses less digits than its factorization.

78275141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486211.

The product of its digits is 15680, while the sum is 35.

The square root of 78275141 is about 8847.3239456911. The cubic root of 78275141 is about 427.7676647572.

The spelling of 78275141 in words is "seventy-eight million, two hundred seventy-five thousand, one hundred forty-one".