143251426399 has 4 divisors (see below), whose sum is σ = 143582261536. Its totient is φ = 142920591264.

The previous prime is 143251426391. The next prime is 143251426429. The reversal of 143251426399 is 993624152341.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 143251426399 - 2³ = 143251426391 is a prime.

It is a super-2 number, since 2×143251426399² (a number of 23 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 (143251426391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165416919 + ... + 165417784.

It is an arithmetic number, because the mean of its divisors is an integer number (35895565384).

Almost surely, 2^143251426399 is an apocalyptic number.

143251426399 is a deficient number, since it is larger than the sum of its proper divisors (330835137).

143251426399 is an equidigital number, since it uses as much as digits as its factorization.

143251426399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330835136.

The product of its digits is 1399680, while the sum is 49.

The spelling of 143251426399 in words is "one hundred forty-three billion, two hundred fifty-one million, four hundred twenty-six thousand, three hundred ninety-nine".