245248493 has 4 divisors (see below), whose sum is σ = 280284000. Its totient is φ = 210212988.

The previous prime is 245248463. The next prime is 245248499. The reversal of 245248493 is 394842542.

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, and also an emirpimes, since its reverse is a distinct semiprime: 394842542 = 2 ⋅197421271.

It is a cyclic number.

It is not a de Polignac number, because 245248493 - 2¹⁰ = 245247469 is a prime.

It is a super-3 number, since 3×245248493³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 245248493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245248499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17517743 + ... + 17517756.

It is an arithmetic number, because the mean of its divisors is an integer number (70071000).

Almost surely, 2^245248493 is an apocalyptic number.

It is an amenable number.

245248493 is a deficient number, since it is larger than the sum of its proper divisors (35035507).

245248493 is an equidigital number, since it uses as much as digits as its factorization.

245248493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35035506.

The product of its digits is 276480, while the sum is 41.

The square root of 245248493 is about 15660.4116484849. The cubic root of 245248493 is about 625.9439542960.

The spelling of 245248493 in words is "two hundred forty-five million, two hundred forty-eight thousand, four hundred ninety-three".