253044101 has 4 divisors (see below), whose sum is σ = 257818572. Its totient is φ = 248269632.

The previous prime is 253044089. The next prime is 253044131. The reversal of 253044101 is 101440352.

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 186295201 + 66748900 = 13649^2 + 8170^2 .

It is a cyclic number.

It is not a de Polignac number, because 253044101 - 2¹⁴ = 253027717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253044131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2387156 + ... + 2387261.

It is an arithmetic number, because the mean of its divisors is an integer number (64454643).

Almost surely, 2^253044101 is an apocalyptic number.

It is an amenable number.

253044101 is a deficient number, since it is larger than the sum of its proper divisors (4774471).

253044101 is an equidigital number, since it uses as much as digits as its factorization.

253044101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4774470.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 253044101 is about 15907.3599632371. The cubic root of 253044101 is about 632.5071013175.

Adding to 253044101 its reverse (101440352), we get a palindrome (354484453).

The spelling of 253044101 in words is "two hundred fifty-three million, forty-four thousand, one hundred one".