280642141 has 8 divisors (see below), whose sum is σ = 318137120. Its totient is φ = 245419632.

The previous prime is 280642121. The next prime is 280642183. The reversal of 280642141 is 141246082.

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 280642141 - 2⁷ = 280642013 is a prime.

It is a super-2 number, since 2×280642141² = 157520022610127762, 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 (280642111) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 567855 + ... + 568348.

It is an arithmetic number, because the mean of its divisors is an integer number (39767140).

Almost surely, 2^280642141 is an apocalyptic number.

It is an amenable number.

280642141 is a deficient number, since it is larger than the sum of its proper divisors (37494979).

280642141 is a wasteful number, since it uses less digits than its factorization.

280642141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136235.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 280642141 is about 16752.3771745982. The cubic root of 280642141 is about 654.7129958735.

The spelling of 280642141 in words is "two hundred eighty million, six hundred forty-two thousand, one hundred forty-one".