283144421 has 16 divisors (see below), whose sum is σ = 348561408. Its totient is φ = 224650800.

The previous prime is 283144399. The next prime is 283144423. The reversal of 283144421 is 124441382.

It is not a de Polignac number, because 283144421 - 2¹⁴ = 283128037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (283144423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23375 + ... + 33356.

It is an arithmetic number, because the mean of its divisors is an integer number (21785088).

Almost surely, 2^283144421 is an apocalyptic number.

It is an amenable number.

283144421 is a deficient number, since it is larger than the sum of its proper divisors (65416987).

283144421 is a wasteful number, since it uses less digits than its factorization.

283144421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56792.

The product of its digits is 6144, while the sum is 29.

The square root of 283144421 is about 16826.8957624394. The cubic root of 283144421 is about 656.6531061586.

The spelling of 283144421 in words is "two hundred eighty-three million, one hundred forty-four thousand, four hundred twenty-one".