1745008221 has 16 divisors (see below), whose sum is σ = 2542860288. Its totient is φ = 1055636400.

The previous prime is 1745008211. The next prime is 1745008253. The reversal of 1745008221 is 1228005471.

It is not a de Polignac number, because 1745008221 - 2⁵ = 1745008189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1745008211) 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, 30285 + ... + 66386.

It is an arithmetic number, because the mean of its divisors is an integer number (158928768).

Almost surely, 2^1745008221 is an apocalyptic number.

1745008221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1745008221 is a deficient number, since it is larger than the sum of its proper divisors (797852067).

1745008221 is a wasteful number, since it uses less digits than its factorization.

1745008221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97232.

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 1745008221 is about 41773.2955487115. The cubic root of 1745008221 is about 1203.9242411484.

The spelling of 1745008221 in words is "one billion, seven hundred forty-five million, eight thousand, two hundred twenty-one".