245002489 has 4 divisors (see below), whose sum is σ = 245076624. Its totient is φ = 244928356.

The previous prime is 245002481. The next prime is 245002507. The reversal of 245002489 is 984200542.

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 a cyclic number.

It is not a de Polignac number, because 245002489 - 2³ = 245002481 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (245002481) 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, 31867 + ... + 38800.

It is an arithmetic number, because the mean of its divisors is an integer number (61269156).

Almost surely, 2^245002489 is an apocalyptic number.

It is an amenable number.

245002489 is a deficient number, since it is larger than the sum of its proper divisors (74135).

245002489 is an equidigital number, since it uses as much as digits as its factorization.

245002489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74134.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 245002489 is about 15652.5553504851. Note that the first 3 decimals coincide. The cubic root of 245002489 is about 625.7345935375.

The spelling of 245002489 in words is "two hundred forty-five million, two thousand, four hundred eighty-nine".