1345242143 has 8 divisors (see below), whose sum is σ = 1573173888. Its totient is φ = 1126248984.

The previous prime is 1345242127. The next prime is 1345242149. The reversal of 1345242143 is 3412425431.

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

It is not a de Polignac number, because 1345242143 - 2⁴ = 1345242127 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 (1345242149) 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, 2234321 + ... + 2234922.

It is an arithmetic number, because the mean of its divisors is an integer number (196646736).

Almost surely, 2^1345242143 is an apocalyptic number.

1345242143 is a deficient number, since it is larger than the sum of its proper divisors (227931745).

1345242143 is an equidigital number, since it uses as much as digits as its factorization.

1345242143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4469293.

The product of its digits is 11520, while the sum is 29.

The square root of 1345242143 is about 36677.5427612047. The cubic root of 1345242143 is about 1103.9095438800.

Adding to 1345242143 its reverse (3412425431), we get a palindrome (4757667574).

The spelling of 1345242143 in words is "one billion, three hundred forty-five million, two hundred forty-two thousand, one hundred forty-three".