142989212 has 18 divisors (see below), whose sum is σ = 264097008. Its totient is φ = 67731048.

The previous prime is 142989211. The next prime is 142989221. The reversal of 142989212 is 212989241.

142989212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142989211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48068 + ... + 50955.

It is an arithmetic number, because the mean of its divisors is an integer number (14672056).

Almost surely, 2^142989212 is an apocalyptic number.

It is an amenable number.

142989212 is a deficient number, since it is larger than the sum of its proper divisors (121107796).

142989212 is a wasteful number, since it uses less digits than its factorization.

142989212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99065 (or 99044 counting only the distinct ones).

The product of its digits is 20736, while the sum is 38.

The square root of 142989212 is about 11957.8096656537. The cubic root of 142989212 is about 522.9190027468.

The spelling of 142989212 in words is "one hundred forty-two million, nine hundred eighty-nine thousand, two hundred twelve".