78232143 has 8 divisors (see below), whose sum is σ = 113792256. Its totient is φ = 47413400.

The previous prime is 78232117. The next prime is 78232183. The reversal of 78232143 is 34123287.

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 78232143 - 2⁸ = 78231887 is a prime.

It is a super-2 number, since 2×78232143² = 12240536396744898, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78232143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78232183) 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, 1185303 + ... + 1185368.

It is an arithmetic number, because the mean of its divisors is an integer number (14224032).

Almost surely, 2^78232143 is an apocalyptic number.

78232143 is a deficient number, since it is larger than the sum of its proper divisors (35560113).

78232143 is a wasteful number, since it uses less digits than its factorization.

78232143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2370685.

The product of its digits is 8064, while the sum is 30.

The square root of 78232143 is about 8844.8936115705. The cubic root of 78232143 is about 427.6893234825.

It can be divided in two parts, 78 and 232143, that added together give a triangular number (232221 = T₆₈₁).

The spelling of 78232143 in words is "seventy-eight million, two hundred thirty-two thousand, one hundred forty-three".