143426121 has 4 divisors (see below), whose sum is σ = 191234832. Its totient is φ = 95617412.

The previous prime is 143426111. The next prime is 143426131. The reversal of 143426121 is 121624341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (143426111) and next prime (143426131).

It is a cyclic number.

It is not a de Polignac number, because 143426121 - 2⁷ = 143425993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 143426091 and 143426100.

It is not an unprimeable number, because it can be changed into a prime (143426111) 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, 23904351 + ... + 23904356.

It is an arithmetic number, because the mean of its divisors is an integer number (47808708).

Almost surely, 2^143426121 is an apocalyptic number.

It is an amenable number.

143426121 is a deficient number, since it is larger than the sum of its proper divisors (47808711).

143426121 is an equidigital number, since it uses as much as digits as its factorization.

143426121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47808710.

The product of its digits is 1152, while the sum is 24.

The square root of 143426121 is about 11976.0645038343. The cubic root of 143426121 is about 523.4510608697.

The spelling of 143426121 in words is "one hundred forty-three million, four hundred twenty-six thousand, one hundred twenty-one".