1585150 has 36 divisors (see below), whose sum is σ = 3435048. Its totient is φ = 542640.

The previous prime is 1585147. The next prime is 1585201. The reversal of 1585150 is 515851.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2127 + ... + 2773.

It is an arithmetic number, because the mean of its divisors is an integer number (95418).

2^1585150 is an apocalyptic number.

1585150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1585150 is an abundant number, since it is smaller than the sum of its proper divisors (1849898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1585150 is a wasteful number, since it uses less digits than its factorization.

1585150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673 (or 661 counting only the distinct ones).

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

The square root of 1585150 is about 1259.0274024023. The cubic root of 1585150 is about 116.5977370605.

The spelling of 1585150 in words is "one million, five hundred eighty-five thousand, one hundred fifty".