142451 has 4 divisors (see below), whose sum is σ = 143472. Its totient is φ = 141432.

The previous prime is 142433. The next prime is 142453. The reversal of 142451 is 154241.

142451 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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 142451 - 2¹⁴ = 126067 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 142451.

It is not an unprimeable number, because it can be changed into a prime (142453) 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, 260 + ... + 593.

It is an arithmetic number, because the mean of its divisors is an integer number (35868).

2¹⁴²⁴⁵¹ is an apocalyptic number.

142451 is a deficient number, since it is larger than the sum of its proper divisors (1021).

142451 is an equidigital number, since it uses as much as digits as its factorization.

142451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020.

The product of its digits is 160, while the sum is 17.

The square root of 142451 is about 377.4268140978. The cubic root of 142451 is about 52.2262088065.

Adding to 142451 its reverse (154241), we get a palindrome (296692).

The spelling of 142451 in words is "one hundred forty-two thousand, four hundred fifty-one".