1229517795143 has 16 divisors (see below), whose sum is σ = 1415335161600. Its totient is φ = 1057133014080.

The previous prime is 1229517795137. The next prime is 1229517795199. The reversal of 1229517795143 is 3415977159221.

It is not a de Polignac number, because 1229517795143 - 2⁴ = 1229517795127 is a prime.

It is a super-2 number, since 2×1229517795143² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1229517795133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27279473 + ... + 27324506.

It is an arithmetic number, because the mean of its divisors is an integer number (88458447600).

Almost surely, 2^{1229517795143} is an apocalyptic number.

1229517795143 is a deficient number, since it is larger than the sum of its proper divisors (185817366457).

1229517795143 is a wasteful number, since it uses less digits than its factorization.

1229517795143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54604102.

The product of its digits is 4762800, while the sum is 56.

The spelling of 1229517795143 in words is "one trillion, two hundred twenty-nine billion, five hundred seventeen million, seven hundred ninety-five thousand, one hundred forty-three".