245689357 has 4 divisors (see below), whose sum is σ = 245725056. Its totient is φ = 245653660.

The previous prime is 245689333. The next prime is 245689373. The reversal of 245689357 is 753986542.

245689357 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 a cyclic number.

It is not a de Polignac number, because 245689357 - 2¹⁹ = 245165069 is a prime.

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 245689357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245689307) 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, 3883 + ... + 22504.

It is an arithmetic number, because the mean of its divisors is an integer number (61431264).

Almost surely, 2^245689357 is an apocalyptic number.

It is an amenable number.

245689357 is a deficient number, since it is larger than the sum of its proper divisors (35699).

245689357 is an equidigital number, since it uses as much as digits as its factorization.

245689357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35698.

The product of its digits is 1814400, while the sum is 49.

The square root of 245689357 is about 15674.4810759400. The cubic root of 245689357 is about 626.3187999096.

The spelling of 245689357 in words is "two hundred forty-five million, six hundred eighty-nine thousand, three hundred fifty-seven".