1285377 has 8 divisors (see below), whose sum is σ = 1722240. Its totient is φ = 852720.

The previous prime is 1285351. The next prime is 1285381. The reversal of 1285377 is 7735821.

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

It is not a de Polignac number, because 1285377 - 2¹² = 1281281 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

1285377 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1285397) 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, 249 + ... + 1622.

It is an arithmetic number, because the mean of its divisors is an integer number (215280).

2^1285377 is an apocalyptic number.

It is an amenable number.

1285377 is a deficient number, since it is larger than the sum of its proper divisors (436863).

1285377 is a wasteful number, since it uses less digits than its factorization.

1285377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2103.

The product of its digits is 11760, while the sum is 33.

The square root of 1285377 is about 1133.7446802521. The cubic root of 1285377 is about 108.7285279314.

The spelling of 1285377 in words is "one million, two hundred eighty-five thousand, three hundred seventy-seven".