142543051 has 4 divisors (see below), whose sum is σ = 162906352. Its totient is φ = 122179752.

The previous prime is 142543043. The next prime is 142543067. The reversal of 142543051 is 150345241.

It is a happy number.

142543051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 142543051 - 2³ = 142543043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142543081) 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, 10181640 + ... + 10181653.

It is an arithmetic number, because the mean of its divisors is an integer number (40726588).

Almost surely, 2^142543051 is an apocalyptic number.

142543051 is a deficient number, since it is larger than the sum of its proper divisors (20363301).

142543051 is an equidigital number, since it uses as much as digits as its factorization.

142543051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20363300.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 142543051 is about 11939.1394581017. The cubic root of 142543051 is about 522.3745580749.

Adding to 142543051 its reverse (150345241), we get a palindrome (292888292).

The spelling of 142543051 in words is "one hundred forty-two million, five hundred forty-three thousand, fifty-one".