143489069 has 4 divisors (see below), whose sum is σ = 143889120. Its totient is φ = 143089020.

The previous prime is 143489057. The next prime is 143489117. The reversal of 143489069 is 960984341.

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, and also an emirpimes, since its reverse is a distinct semiprime: 960984341 = 4243 ⋅226487.

It is a cyclic number.

It is not a de Polignac number, because 143489069 - 2¹² = 143484973 is a prime.

It is a super-2 number, since 2×143489069² = 41178225844973522, which 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 (143489039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199487 + ... + 200204.

It is an arithmetic number, because the mean of its divisors is an integer number (35972280).

Almost surely, 2^143489069 is an apocalyptic number.

It is an amenable number.

143489069 is a deficient number, since it is larger than the sum of its proper divisors (400051).

143489069 is an equidigital number, since it uses as much as digits as its factorization.

143489069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400050.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 143489069 is about 11978.6922908972. The cubic root of 143489069 is about 523.5276284616.

The spelling of 143489069 in words is "one hundred forty-three million, four hundred eighty-nine thousand, sixty-nine".