142919089 has 4 divisors (see below), whose sum is σ = 143206000. Its totient is φ = 142632180.

The previous prime is 142919087. The next prime is 142919093. The reversal of 142919089 is 980919241.

It is a happy number.

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: 980919241 = 1117 ⋅878173.

It is a cyclic number.

It is not a de Polignac number, because 142919089 - 2¹ = 142919087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142919087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142707 + ... + 143704.

It is an arithmetic number, because the mean of its divisors is an integer number (35801500).

Almost surely, 2^142919089 is an apocalyptic number.

It is an amenable number.

142919089 is a deficient number, since it is larger than the sum of its proper divisors (286911).

142919089 is an equidigital number, since it uses as much as digits as its factorization.

142919089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286910.

The product of its (nonzero) digits is 46656, while the sum is 43.

The square root of 142919089 is about 11954.8772055592. The cubic root of 142919089 is about 522.8335076139.

The spelling of 142919089 in words is "one hundred forty-two million, nine hundred nineteen thousand, eighty-nine".