1282404561 has 8 divisors (see below), whose sum is σ = 1711041024. Its totient is φ = 854352240.

The previous prime is 1282404553. The next prime is 1282404581. The reversal of 1282404561 is 1654042821.

It is a happy number.

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

It is not a de Polignac number, because 1282404561 - 2³ = 1282404553 is a prime.

It is a super-2 number, since 2×1282404561² = 3289122916147205442, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1282404581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140886 + ... + 149711.

It is an arithmetic number, because the mean of its divisors is an integer number (213880128).

Almost surely, 2^1282404561 is an apocalyptic number.

It is an amenable number.

1282404561 is a deficient number, since it is larger than the sum of its proper divisors (428636463).

1282404561 is a wasteful number, since it uses less digits than its factorization.

1282404561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292071.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 1282404561 is about 35810.6766342106. The cubic root of 1282404561 is about 1086.4465153757.

The spelling of 1282404561 in words is "one billion, two hundred eighty-two million, four hundred four thousand, five hundred sixty-one".