1913233 has 16 divisors (see below), whose sum is σ = 2298240. Its totient is φ = 1558656.

The previous prime is 1913221. The next prime is 1913251. The reversal of 1913233 is 3323191.

It is a cyclic number.

It is not a de Polignac number, because 1913233 - 2⁵ = 1913201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1913213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21453 + ... + 21541.

It is an arithmetic number, because the mean of its divisors is an integer number (143640).

2^1913233 is an apocalyptic number.

It is an amenable number.

1913233 is a deficient number, since it is larger than the sum of its proper divisors (385007).

1913233 is an equidigital number, since it uses as much as digits as its factorization.

1913233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216.

The product of its digits is 486, while the sum is 22.

The square root of 1913233 is about 1383.1966599150. The cubic root of 1913233 is about 124.1431100055.

The spelling of 1913233 in words is "one million, nine hundred thirteen thousand, two hundred thirty-three".