142100043 has 4 divisors (see below), whose sum is σ = 189466728. Its totient is φ = 94733360.

The previous prime is 142100011. The next prime is 142100051. The reversal of 142100043 is 340001241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142100043 - 2⁵ = 142100011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142099995 and 142100031.

It is not an unprimeable number, because it can be changed into a prime (142100743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23683338 + ... + 23683343.

It is an arithmetic number, because the mean of its divisors is an integer number (47366682).

Almost surely, 2^142100043 is an apocalyptic number.

142100043 is a deficient number, since it is larger than the sum of its proper divisors (47366685).

142100043 is an equidigital number, since it uses as much as digits as its factorization.

142100043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47366684.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 142100043 is about 11920.5722597533. The cubic root of 142100043 is about 521.8328357439.

Adding to 142100043 its reverse (340001241), we get a palindrome (482101284).

The spelling of 142100043 in words is "one hundred forty-two million, one hundred thousand, forty-three".