1658224045 has 4 divisors (see below), whose sum is σ = 1989868860. Its totient is φ = 1326579232.

The previous prime is 1658224039. The next prime is 1658224063. The reversal of 1658224045 is 5404228561.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1291539844 + 366684201 = 35938^2 + 19149^2 .

It is a cyclic number.

It is not a de Polignac number, because 1658224045 - 2¹⁷ = 1658092973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1658223995 and 1658224013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165822400 + ... + 165822409.

It is an arithmetic number, because the mean of its divisors is an integer number (497467215).

Almost surely, 2^1658224045 is an apocalyptic number.

It is an amenable number.

1658224045 is a deficient number, since it is larger than the sum of its proper divisors (331644815).

1658224045 is an equidigital number, since it uses as much as digits as its factorization.

1658224045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331644814.

The product of its (nonzero) digits is 76800, while the sum is 37.

The square root of 1658224045 is about 40721.2971920100. The cubic root of 1658224045 is about 1183.6257446162.

The spelling of 1658224045 in words is "one billion, six hundred fifty-eight million, two hundred twenty-four thousand, forty-five".