78465142 has 8 divisors (see below), whose sum is σ = 134511696. Its totient is φ = 33627912.

The previous prime is 78465131. The next prime is 78465151. The reversal of 78465142 is 24156487.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2802313 + ... + 2802340.

It is an arithmetic number, because the mean of its divisors is an integer number (16813962).

Almost surely, 2^78465142 is an apocalyptic number.

78465142 is a deficient number, since it is larger than the sum of its proper divisors (56046554).

78465142 is a wasteful number, since it uses less digits than its factorization.

78465142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5604662.

The product of its digits is 53760, while the sum is 37.

The square root of 78465142 is about 8858.0552041630. The cubic root of 78465142 is about 428.1134987373.

The spelling of 78465142 in words is "seventy-eight million, four hundred sixty-five thousand, one hundred forty-two".