143145857617 has 12 divisors (see below), whose sum is σ = 166523862960. Its totient is φ = 122691105096.

The previous prime is 143145857611. The next prime is 143145857623. The reversal of 143145857617 is 716758541341.

It is an interprime number because it is at equal distance from previous prime (143145857611) and next prime (143145857623).

It is not a de Polignac number, because 143145857617 - 2³ = 143145857609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (143145857611) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1424298 + ... + 1521484.

It is an arithmetic number, because the mean of its divisors is an integer number (13876988580).

Almost surely, 2^143145857617 is an apocalyptic number.

It is an amenable number.

143145857617 is a deficient number, since it is larger than the sum of its proper divisors (23378005343).

143145857617 is an equidigital number, since it uses as much as digits as its factorization.

143145857617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127260 (or 127253 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 52.

The spelling of 143145857617 in words is "one hundred forty-three billion, one hundred forty-five million, eight hundred fifty-seven thousand, six hundred seventeen".