253145111 has 4 divisors (see below), whose sum is σ = 259319424. Its totient is φ = 246970800.

The previous prime is 253145099. The next prime is 253145117. The reversal of 253145111 is 111541352.

253145111 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253145111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253145117) 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, 3087095 + ... + 3087176.

It is an arithmetic number, because the mean of its divisors is an integer number (64829856).

Almost surely, 2^253145111 is an apocalyptic number.

253145111 is a deficient number, since it is larger than the sum of its proper divisors (6174313).

253145111 is an equidigital number, since it uses as much as digits as its factorization.

253145111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6174312.

The product of its digits is 600, while the sum is 23.

The square root of 253145111 is about 15910.5345918985. The cubic root of 253145111 is about 632.5912513962.

Adding to 253145111 its reverse (111541352), we get a palindrome (364686463).

The spelling of 253145111 in words is "two hundred fifty-three million, one hundred forty-five thousand, one hundred eleven".