245220033 has 4 divisors (see below), whose sum is σ = 326960048. Its totient is φ = 163480020.

The previous prime is 245220011. The next prime is 245220037. The reversal of 245220033 is 330022542.

245220033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 245220033 - 2¹² = 245215937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 245219991 and 245220009.

It is not an unprimeable number, because it can be changed into a prime (245220037) 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, 40870003 + ... + 40870008.

It is an arithmetic number, because the mean of its divisors is an integer number (81740012).

Almost surely, 2^245220033 is an apocalyptic number.

It is an amenable number.

245220033 is a deficient number, since it is larger than the sum of its proper divisors (81740015).

245220033 is an equidigital number, since it uses as much as digits as its factorization.

245220033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81740014.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 245220033 is about 15659.5029614608. The cubic root of 245220033 is about 625.9197406861.

Adding to 245220033 its reverse (330022542), we get a palindrome (575242575).

The spelling of 245220033 in words is "two hundred forty-five million, two hundred twenty thousand, thirty-three".