245864823133 has 8 divisors (see below), whose sum is σ = 245996138808. Its totient is φ = 245733548544.

The previous prime is 245864823119. The next prime is 245864823151. The reversal of 245864823133 is 331328468542.

It can be written as a sum of positive squares in 4 ways, for example, as 75178510969 + 170686312164 = 274187^2 + 413142^2 .

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-245864823133 is a prime.

It is a super-2 number, since 2×245864823133² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245864823733) 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, 28278735 + ... + 28287427.

It is an arithmetic number, because the mean of its divisors is an integer number (30749517351).

Almost surely, 2^245864823133 is an apocalyptic number.

It is an amenable number.

245864823133 is a deficient number, since it is larger than the sum of its proper divisors (131315675).

245864823133 is an equidigital number, since it uses as much as digits as its factorization.

245864823133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20543.

The product of its digits is 3317760, while the sum is 49.

The spelling of 245864823133 in words is "two hundred forty-five billion, eight hundred sixty-four million, eight hundred twenty-three thousand, one hundred thirty-three".