245143153 has 4 divisors (see below), whose sum is σ = 247670500. Its totient is φ = 242615808.

The previous prime is 245143139. The next prime is 245143159. The reversal of 245143153 is 351341542.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 351341542 = 2 ⋅175670771.

It can be written as a sum of positive squares in 2 ways, for example, as 94148209 + 150994944 = 9703^2 + 12288^2 .

It is a cyclic number.

It is not a de Polignac number, because 245143153 - 2⁹ = 245142641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245143159) 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, 1263528 + ... + 1263721.

It is an arithmetic number, because the mean of its divisors is an integer number (61917625).

Almost surely, 2^245143153 is an apocalyptic number.

It is an amenable number.

245143153 is a deficient number, since it is larger than the sum of its proper divisors (2527347).

245143153 is an equidigital number, since it uses as much as digits as its factorization.

245143153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2527346.

The product of its digits is 7200, while the sum is 28.

The square root of 245143153 is about 15657.0480295616. The cubic root of 245143153 is about 625.8543222415.

Adding to 245143153 its reverse (351341542), we get a palindrome (596484695).

The spelling of 245143153 in words is "two hundred forty-five million, one hundred forty-three thousand, one hundred fifty-three".