245321151653 has 4 divisors (see below), whose sum is σ = 253780501740. Its totient is φ = 236861801568.

The previous prime is 245321151629. The next prime is 245321151679. The reversal of 245321151653 is 356151123542.

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 162781585444 + 82539566209 = 403462^2 + 287297^2 .

It is a cyclic number.

It is not a de Polignac number, because 245321151653 - 2¹² = 245321147557 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 (245321151953) 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, 4229675000 + ... + 4229675057.

It is an arithmetic number, because the mean of its divisors is an integer number (63445125435).

Almost surely, 2^245321151653 is an apocalyptic number.

It is an amenable number.

245321151653 is a deficient number, since it is larger than the sum of its proper divisors (8459350087).

245321151653 is an equidigital number, since it uses as much as digits as its factorization.

245321151653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8459350086.

The product of its digits is 108000, while the sum is 38.

The spelling of 245321151653 in words is "two hundred forty-five billion, three hundred twenty-one million, one hundred fifty-one thousand, six hundred fifty-three".