245042152 has 8 divisors (see below), whose sum is σ = 459454050. Its totient is φ = 122521072.

The previous prime is 245042129. The next prime is 245042153. The reversal of 245042152 is 251240542.

It can be written as a sum of positive squares in only one way, i.e., 197514916 + 47527236 = 14054^2 + 6894^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×245042152² = 120091312513582208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (245042153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15315127 + ... + 15315142.

Almost surely, 2^245042152 is an apocalyptic number.

It is an amenable number.

245042152 is a deficient number, since it is larger than the sum of its proper divisors (214411898).

245042152 is a wasteful number, since it uses less digits than its factorization.

245042152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30630275 (or 30630271 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 245042152 is about 15653.8222808361. The cubic root of 245042152 is about 625.7683580544.

Adding to 245042152 its reverse (251240542), we get a palindrome (496282694).

The spelling of 245042152 in words is "two hundred forty-five million, forty-two thousand, one hundred fifty-two".