142989355 has 8 divisors (see below), whose sum is σ = 172137312. Its totient is φ = 114024768.

The previous prime is 142989347. The next prime is 142989373. The reversal of 142989355 is 553989241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142989355 - 2³ = 142989347 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44119 + ... + 47248.

It is an arithmetic number, because the mean of its divisors is an integer number (21517164).

Almost surely, 2^142989355 is an apocalyptic number.

142989355 is a deficient number, since it is larger than the sum of its proper divisors (29147957).

142989355 is an equidigital number, since it uses as much as digits as its factorization.

142989355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91685.

The product of its digits is 388800, while the sum is 46.

The square root of 142989355 is about 11957.8156450081. The cubic root of 142989355 is about 522.9191770663.

It can be divided in two parts, 14298 and 9355, that added together give a triangular number (23653 = T₂₁₇).

The spelling of 142989355 in words is "one hundred forty-two million, nine hundred eighty-nine thousand, three hundred fifty-five".