1825155 has 12 divisors (see below), whose sum is σ = 3163680. Its totient is φ = 973392.

The previous prime is 1825141. The next prime is 1825157. The reversal of 1825155 is 5515281.

It is not a de Polignac number, because 1825155 - 2⁴ = 1825139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1825157) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20235 + ... + 20324.

It is an arithmetic number, because the mean of its divisors is an integer number (263640).

2^1825155 is an apocalyptic number.

1825155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1825155 is a deficient number, since it is larger than the sum of its proper divisors (1338525).

1825155 is a wasteful number, since it uses less digits than its factorization.

1825155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40570 (or 40567 counting only the distinct ones).

The product of its digits is 2000, while the sum is 27.

The square root of 1825155 is about 1350.9829754664. The cubic root of 1825155 is about 122.2080790185.

The spelling of 1825155 in words is "one million, eight hundred twenty-five thousand, one hundred fifty-five".