142435541 has 4 divisors (see below), whose sum is σ = 142459500. Its totient is φ = 142411584.

The previous prime is 142435523. The next prime is 142435547. The reversal of 142435541 is 145534241.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 145534241 = 97 ⋅1500353.

It can be written as a sum of positive squares in 2 ways, for example, as 16434916 + 126000625 = 4054^2 + 11225^2 .

It is a cyclic number.

It is not a de Polignac number, because 142435541 - 2²² = 138241237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142435547) 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, 4445 + ... + 17453.

It is an arithmetic number, because the mean of its divisors is an integer number (35614875).

Almost surely, 2^142435541 is an apocalyptic number.

It is an amenable number.

142435541 is a deficient number, since it is larger than the sum of its proper divisors (23959).

142435541 is a wasteful number, since it uses less digits than its factorization.

142435541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23958.

The product of its digits is 9600, while the sum is 29.

The square root of 142435541 is about 11934.6361905171. The cubic root of 142435541 is about 522.2431951555.

Adding to 142435541 its reverse (145534241), we get a palindrome (287969782).

The spelling of 142435541 in words is "one hundred forty-two million, four hundred thirty-five thousand, five hundred forty-one".