245207153 has 4 divisors (see below), whose sum is σ = 246769140. Its totient is φ = 243645168.

The previous prime is 245207143. The next prime is 245207159. The reversal of 245207153 is 351702542.

It is a happy number.

245207153 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.

It can be written as a sum of positive squares in 2 ways, for example, as 22391824 + 222815329 = 4732^2 + 14927^2 .

It is a cyclic number.

It is not a de Polignac number, because 245207153 - 2²⁶ = 178098289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245207159) 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, 780758 + ... + 781071.

It is an arithmetic number, because the mean of its divisors is an integer number (61692285).

Almost surely, 2^245207153 is an apocalyptic number.

It is an amenable number.

245207153 is a deficient number, since it is larger than the sum of its proper divisors (1561987).

245207153 is a wasteful number, since it uses less digits than its factorization.

245207153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1561986.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 245207153 is about 15659.0917041826. The cubic root of 245207153 is about 625.9087818378.

Adding to 245207153 its reverse (351702542), we get a palindrome (596909695).

The spelling of 245207153 in words is "two hundred forty-five million, two hundred seven thousand, one hundred fifty-three".