253146143 has 4 divisors (see below), whose sum is σ = 253231440. Its totient is φ = 253060848.

The previous prime is 253146137. The next prime is 253146149. The reversal of 253146143 is 341641352.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (253146137) and next prime (253146149).

It is a cyclic number.

It is not a de Polignac number, because 253146143 - 2⁸ = 253145887 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 (253146149) 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, 38030 + ... + 44187.

It is an arithmetic number, because the mean of its divisors is an integer number (63307860).

Almost surely, 2^253146143 is an apocalyptic number.

253146143 is a deficient number, since it is larger than the sum of its proper divisors (85297).

253146143 is an equidigital number, since it uses as much as digits as its factorization.

253146143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85296.

The product of its digits is 8640, while the sum is 29.

The square root of 253146143 is about 15910.5670232082. The cubic root of 253146143 is about 632.5921110260.

Adding to 253146143 its reverse (341641352), we get a palindrome (594787495).

The spelling of 253146143 in words is "two hundred fifty-three million, one hundred forty-six thousand, one hundred forty-three".