1243143151 has 2 divisors, whose sum is σ = 1243143152. Its totient is φ = 1243143150.

The previous prime is 1243143149. The next prime is 1243143163. The reversal of 1243143151 is 1513413421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1243143151 - 2¹ = 1243143149 is a prime.

It is a super-3 number, since 3×1243143151³ (a number of 28 digits) contains 333 as substring.

Together with 1243143149, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1243144151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621571575 + 621571576.

It is an arithmetic number, because the mean of its divisors is an integer number (621571576).

Almost surely, 2^1243143151 is an apocalyptic number.

1243143151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1243143151 is an equidigital number, since it uses as much as digits as its factorization.

1243143151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 25.

The square root of 1243143151 is about 35258.2352224271. The cubic root of 1243143151 is about 1075.2440479989.

Adding to 1243143151 its reverse (1513413421), we get a palindrome (2756556572).

The spelling of 1243143151 in words is "one billion, two hundred forty-three million, one hundred forty-three thousand, one hundred fifty-one".