142530351 has 4 divisors (see below), whose sum is σ = 190040472. Its totient is φ = 95020232.

The previous prime is 142530341. The next prime is 142530359. The reversal of 142530351 is 153035241.

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 142530351 - 2⁵ = 142530319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142530359) 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, 23755056 + ... + 23755061.

It is an arithmetic number, because the mean of its divisors is an integer number (47510118).

Almost surely, 2^142530351 is an apocalyptic number.

142530351 is a deficient number, since it is larger than the sum of its proper divisors (47510121).

142530351 is an equidigital number, since it uses as much as digits as its factorization.

142530351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47510120.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 142530351 is about 11938.6075821262. The cubic root of 142530351 is about 522.3590438054.

Adding to 142530351 its reverse (153035241), we get a palindrome (295565592).

The spelling of 142530351 in words is "one hundred forty-two million, five hundred thirty thousand, three hundred fifty-one".