1551085 has 8 divisors (see below), whose sum is σ = 1921536. Its totient is φ = 1200720.

The previous prime is 1551083. The next prime is 1551089. The reversal of 1551085 is 5801551.

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

It is not a de Polignac number, because 1551085 - 2¹ = 1551083 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 (1551083) 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, 4849 + ... + 5158.

It is an arithmetic number, because the mean of its divisors is an integer number (240192).

2^1551085 is an apocalyptic number.

It is an amenable number.

1551085 is a deficient number, since it is larger than the sum of its proper divisors (370451).

1551085 is a wasteful number, since it uses less digits than its factorization.

1551085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10043.

The product of its (nonzero) digits is 1000, while the sum is 25.

The square root of 1551085 is about 1245.4256300558. The cubic root of 1551085 is about 115.7564499669.

The spelling of 1551085 in words is "one million, five hundred fifty-one thousand, eighty-five".