1791153 has 40 divisors (see below), whose sum is σ = 3306688. Its totient is φ = 944784.

The previous prime is 1791121. The next prime is 1791161. The reversal of 1791153 is 3511971.

It is a happy number.

It is not a de Polignac number, because 1791153 - 2⁵ = 1791121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 9.

It is a zygodrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (1791113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 137775 + ... + 137787.

2^1791153 is an apocalyptic number.

1791153 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1791153 is a deficient number, since it is larger than the sum of its proper divisors (1515535).

1791153 is an frugal number, since it uses more digits than its factorization.

1791153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47 (or 23 counting only the distinct ones).

The product of its digits is 945, while the sum is 27.

The square root of 1791153 is about 1338.3396429905. The cubic root of 1791153 is about 121.4444190224. Note that the first 4 decimals are identical.

The spelling of 1791153 in words is "one million, seven hundred ninety-one thousand, one hundred fifty-three".