142331453 has 6 divisors (see below), whose sum is σ = 156447102. Its totient is φ = 129392120.

The previous prime is 142331443. The next prime is 142331461. The reversal of 142331453 is 354133241.

It can be written as a sum of positive squares in only one way, i.e., 139310809 + 3020644 = 11803^2 + 1738^2 .

It is not a de Polignac number, because 142331453 - 2⁶ = 142331389 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 (142331443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 588026 + ... + 588267.

It is an arithmetic number, because the mean of its divisors is an integer number (26074517).

Almost surely, 2^142331453 is an apocalyptic number.

It is an amenable number.

142331453 is a deficient number, since it is larger than the sum of its proper divisors (14115649).

142331453 is a wasteful number, since it uses less digits than its factorization.

142331453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176315 (or 1176304 counting only the distinct ones).

The product of its digits is 4320, while the sum is 26.

The square root of 142331453 is about 11930.2746405940. The cubic root of 142331453 is about 522.1159504709.

Adding to 142331453 its reverse (354133241), we get a palindrome (496464694).

The spelling of 142331453 in words is "one hundred forty-two million, three hundred thirty-one thousand, four hundred fifty-three".