280912230145 has 32 divisors (see below), whose sum is σ = 342709346304. Its totient is φ = 221026968000.

The previous prime is 280912230143. The next prime is 280912230149. The reversal of 280912230145 is 541032219082.

It is not a de Polignac number, because 280912230145 - 2¹ = 280912230143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (280912230143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33346404 + ... + 33354826.

It is an arithmetic number, because the mean of its divisors is an integer number (10709667072).

Almost surely, 2^280912230145 is an apocalyptic number.

It is an amenable number.

280912230145 is a deficient number, since it is larger than the sum of its proper divisors (61797116159).

280912230145 is a wasteful number, since it uses less digits than its factorization.

280912230145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9013.

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 280912230145 in words is "two hundred eighty billion, nine hundred twelve million, two hundred thirty thousand, one hundred forty-five".