1285545605 has 8 divisors (see below), whose sum is σ = 1623847200. Its totient is φ = 974308176.

The previous prime is 1285545577. The next prime is 1285545607. The reversal of 1285545605 is 5065455821.

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 1285545605 - 2²² = 1281351301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1285545607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6765935 + ... + 6766124.

It is an arithmetic number, because the mean of its divisors is an integer number (202980900).

Almost surely, 2^1285545605 is an apocalyptic number.

It is an amenable number.

1285545605 is a deficient number, since it is larger than the sum of its proper divisors (338301595).

1285545605 is a wasteful number, since it uses less digits than its factorization.

1285545605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13532083.

The product of its (nonzero) digits is 240000, while the sum is 41.

The square root of 1285545605 is about 35854.5060626973. The cubic root of 1285545605 is about 1087.3328175644.

The spelling of 1285545605 in words is "one billion, two hundred eighty-five million, five hundred forty-five thousand, six hundred five".