1285341409 has 8 divisors (see below), whose sum is σ = 1440088128. Its totient is φ = 1136910960.

The previous prime is 1285341401. The next prime is 1285341427. The reversal of 1285341409 is 9041435821.

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 1285341409 - 2³ = 1285341401 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1285341401) 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, 1578637 + ... + 1579450.

It is an arithmetic number, because the mean of its divisors is an integer number (180011016).

Almost surely, 2^1285341409 is an apocalyptic number.

It is an amenable number.

1285341409 is a deficient number, since it is larger than the sum of its proper divisors (154746719).

1285341409 is a wasteful number, since it uses less digits than its factorization.

1285341409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3158135.

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

The square root of 1285341409 is about 35851.6583856312. The cubic root of 1285341409 is about 1087.2752438857.

The spelling of 1285341409 in words is "one billion, two hundred eighty-five million, three hundred forty-one thousand, four hundred nine".