245133946 has 8 divisors (see below), whose sum is σ = 371832660. Its totient is φ = 121189728.

The previous prime is 245133937. The next prime is 245133947. The reversal of 245133946 is 649331542.

It can be written as a sum of positive squares in 2 ways, for example, as 243016921 + 2117025 = 15589^2 + 1455^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (245133947) 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, 688401 + ... + 688756.

Almost surely, 2^245133946 is an apocalyptic number.

245133946 is a deficient number, since it is larger than the sum of its proper divisors (126698714).

245133946 is a wasteful number, since it uses less digits than its factorization.

245133946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377248.

The product of its digits is 77760, while the sum is 37.

The square root of 245133946 is about 15656.7540058596. The cubic root of 245133946 is about 625.8464869382.

The spelling of 245133946 in words is "two hundred forty-five million, one hundred thirty-three thousand, nine hundred forty-six".