245419133 has 4 divisors (see below), whose sum is σ = 246472668. Its totient is φ = 244365600.

The previous prime is 245419129. The next prime is 245419151. The reversal of 245419133 is 331914542.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 172607044 + 72812089 = 13138^2 + 8533^2 .

It is a cyclic number.

It is not a de Polignac number, because 245419133 - 2² = 245419129 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 245419133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245419183) 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, 526418 + ... + 526883.

It is an arithmetic number, because the mean of its divisors is an integer number (61618167).

Almost surely, 2^245419133 is an apocalyptic number.

It is an amenable number.

245419133 is a deficient number, since it is larger than the sum of its proper divisors (1053535).

245419133 is a wasteful number, since it uses less digits than its factorization.

245419133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053534.

The product of its digits is 12960, while the sum is 32.

The square root of 245419133 is about 15665.8588337825. The cubic root of 245419133 is about 626.0890945878.

The spelling of 245419133 in words is "two hundred forty-five million, four hundred nineteen thousand, one hundred thirty-three".