253143673 has 4 divisors (see below), whose sum is σ = 255650148. Its totient is φ = 250637200.

The previous prime is 253143641. The next prime is 253143731. The reversal of 253143673 is 376341352.

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 249892864 + 3250809 = 15808^2 + 1803^2 .

It is a cyclic number.

It is not a de Polignac number, because 253143673 - 2⁵ = 253143641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253141673) 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, 1253086 + ... + 1253287.

It is an arithmetic number, because the mean of its divisors is an integer number (63912537).

Almost surely, 2^253143673 is an apocalyptic number.

It is an amenable number.

253143673 is a deficient number, since it is larger than the sum of its proper divisors (2506475).

253143673 is a wasteful number, since it uses less digits than its factorization.

253143673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2506474.

The product of its digits is 45360, while the sum is 34.

The square root of 253143673 is about 15910.4894016495. The cubic root of 253143673 is about 632.5900535747.

The spelling of 253143673 in words is "two hundred fifty-three million, one hundred forty-three thousand, six hundred seventy-three".