142523141 has 4 divisors (see below), whose sum is σ = 142581984. Its totient is φ = 142464300.

The previous prime is 142523131. The next prime is 142523177. The reversal of 142523141 is 141325241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 141325241 = 239 ⋅591319.

It is a cyclic number.

It is not a de Polignac number, because 142523141 - 2⁶ = 142523077 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 (142523131) 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, 25625 + ... + 30686.

It is an arithmetic number, because the mean of its divisors is an integer number (35645496).

Almost surely, 2^142523141 is an apocalyptic number.

It is an amenable number.

142523141 is a deficient number, since it is larger than the sum of its proper divisors (58843).

142523141 is an equidigital number, since it uses as much as digits as its factorization.

142523141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58842.

The product of its digits is 960, while the sum is 23.

The square root of 142523141 is about 11938.3056167950. The cubic root of 142523141 is about 522.3502356880.

Adding to 142523141 its reverse (141325241), we get a palindrome (283848382).

The spelling of 142523141 in words is "one hundred forty-two million, five hundred twenty-three thousand, one hundred forty-one".