142183001 has 4 divisors (see below), whose sum is σ = 142548900. Its totient is φ = 141817104.

The previous prime is 142182973. The next prime is 142183031. The reversal of 142183001 is 100381241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100381241 = 641 ⋅156601.

It can be written as a sum of positive squares in 2 ways, for example, as 33918976 + 108264025 = 5824^2 + 10405^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142183001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142183031) 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, 182366 + ... + 183143.

It is an arithmetic number, because the mean of its divisors is an integer number (35637225).

Almost surely, 2^142183001 is an apocalyptic number.

It is an amenable number.

142183001 is a deficient number, since it is larger than the sum of its proper divisors (365899).

142183001 is an equidigital number, since it uses as much as digits as its factorization.

142183001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365898.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 142183001 is about 11924.0513668803. The cubic root of 142183001 is about 521.9343646526.

The spelling of 142183001 in words is "one hundred forty-two million, one hundred eighty-three thousand, one".