142451142621 has 8 divisors (see below), whose sum is σ = 199931428320. Its totient is φ = 89969142672.

The previous prime is 142451142611. The next prime is 142451142623. The reversal of 142451142621 is 126241154241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142451142621 - 2³⁰ = 141377400797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142451142623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1249571370 + ... + 1249571483.

It is an arithmetic number, because the mean of its divisors is an integer number (24991428540).

Almost surely, 2^142451142621 is an apocalyptic number.

It is an amenable number.

142451142621 is a deficient number, since it is larger than the sum of its proper divisors (57480285699).

142451142621 is a wasteful number, since it uses less digits than its factorization.

142451142621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2499142875.

The product of its digits is 15360, while the sum is 33.

Adding to 142451142621 its reverse (126241154241), we get a palindrome (268692296862).

The spelling of 142451142621 in words is "one hundred forty-two billion, four hundred fifty-one million, one hundred forty-two thousand, six hundred twenty-one".