245413500221 has 8 divisors (see below), whose sum is σ = 249088039200. Its totient is φ = 241739304048.

The previous prime is 245413500193. The next prime is 245413500271. The reversal of 245413500221 is 122005314542.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245413500221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245413500271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1604330 + ... + 1750628.

It is an arithmetic number, because the mean of its divisors is an integer number (31136004900).

Almost surely, 2^245413500221 is an apocalyptic number.

It is an amenable number.

245413500221 is a deficient number, since it is larger than the sum of its proper divisors (3674538979).

245413500221 is a wasteful number, since it uses less digits than its factorization.

245413500221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171403.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 245413500221 its reverse (122005314542), we get a palindrome (367418814763).

The spelling of 245413500221 in words is "two hundred forty-five billion, four hundred thirteen million, five hundred thousand, two hundred twenty-one".