142949589 has 4 divisors (see below), whose sum is σ = 190599456. Its totient is φ = 95299724.

The previous prime is 142949581. The next prime is 142949603. The reversal of 142949589 is 985949241.

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 a cyclic number.

It is not a de Polignac number, because 142949589 - 2³ = 142949581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142949581) 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, 23824929 + ... + 23824934.

It is an arithmetic number, because the mean of its divisors is an integer number (47649864).

Almost surely, 2^142949589 is an apocalyptic number.

It is an amenable number.

142949589 is a deficient number, since it is larger than the sum of its proper divisors (47649867).

142949589 is an equidigital number, since it uses as much as digits as its factorization.

142949589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47649866.

The product of its digits is 933120, while the sum is 51.

The square root of 142949589 is about 11956.1527675085. The cubic root of 142949589 is about 522.8706971591.

The spelling of 142949589 in words is "one hundred forty-two million, nine hundred forty-nine thousand, five hundred eighty-nine".