80780142 has 8 divisors (see below), whose sum is σ = 161560296. Its totient is φ = 26926712.

The previous prime is 80780137. The next prime is 80780171. The reversal of 80780142 is 24108708.

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

80780142 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6731673 + ... + 6731684.

It is an arithmetic number, because the mean of its divisors is an integer number (20195037).

Almost surely, 2^80780142 is an apocalyptic number.

80780142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80780142 is a wasteful number, since it uses less digits than its factorization.

80780142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13463362.

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 80780142 is about 8987.7773670691. Note that the first 3 decimals coincide. The cubic root of 80780142 is about 432.2830471026.

The spelling of 80780142 in words is "eighty million, seven hundred eighty thousand, one hundred forty-two".