142819977 has 8 divisors (see below), whose sum is σ = 191528064. Its totient is φ = 94662608.

The previous prime is 142819973. The next prime is 142819997. The reversal of 142819977 is 779918241.

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 142819977 - 2² = 142819973 is a prime.

It is a super-3 number, since 3×142819977³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (142819973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137073 + ... + 138110.

It is an arithmetic number, because the mean of its divisors is an integer number (23941008).

Almost surely, 2^142819977 is an apocalyptic number.

It is an amenable number.

142819977 is a deficient number, since it is larger than the sum of its proper divisors (48708087).

142819977 is a wasteful number, since it uses less digits than its factorization.

142819977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275359.

The product of its digits is 254016, while the sum is 48.

The square root of 142819977 is about 11950.7312328577. The cubic root of 142819977 is about 522.7126208984.

The spelling of 142819977 in words is "one hundred forty-two million, eight hundred nineteen thousand, nine hundred seventy-seven".