1645483 has 4 divisors (see below), whose sum is σ = 1880560. Its totient is φ = 1410408.

The previous prime is 1645477. The next prime is 1645487. The reversal of 1645483 is 3845461.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1645483 is a prime.

It is a super-2 number, since 2×1645483² = 5415228606578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1645487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117528 + ... + 117541.

It is an arithmetic number, because the mean of its divisors is an integer number (470140).

2^1645483 is an apocalyptic number.

1645483 is a deficient number, since it is larger than the sum of its proper divisors (235077).

1645483 is an equidigital number, since it uses as much as digits as its factorization.

1645483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235076.

The product of its digits is 11520, while the sum is 31.

The square root of 1645483 is about 1282.7638130225. The cubic root of 1645483 is about 118.0586465155.

The spelling of 1645483 in words is "one million, six hundred forty-five thousand, four hundred eighty-three".