1253232143 has 8 divisors (see below), whose sum is σ = 1300376112. Its totient is φ = 1206786816.

The previous prime is 1253232131. The next prime is 1253232161. The reversal of 1253232143 is 3412323521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1253232143 - 2¹⁴ = 1253215759 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 (1253232103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171005 + ... + 178182.

It is an arithmetic number, because the mean of its divisors is an integer number (162547014).

Almost surely, 2^1253232143 is an apocalyptic number.

1253232143 is a deficient number, since it is larger than the sum of its proper divisors (47143969).

1253232143 is an equidigital number, since it uses as much as digits as its factorization.

1253232143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349321.

The product of its digits is 4320, while the sum is 26.

The square root of 1253232143 is about 35401.0189542618. The cubic root of 1253232143 is about 1078.1450047207.

Adding to 1253232143 its reverse (3412323521), we get a palindrome (4665555664).

The spelling of 1253232143 in words is "one billion, two hundred fifty-three million, two hundred thirty-two thousand, one hundred forty-three".