142284451 has 8 divisors (see below), whose sum is σ = 148736000. Its totient is φ = 135949320.

The previous prime is 142284449. The next prime is 142284491. The reversal of 142284451 is 154482241.

142284451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 142284451 - 2¹ = 142284449 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142284491) 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, 26601 + ... + 31498.

It is an arithmetic number, because the mean of its divisors is an integer number (18592000).

Almost surely, 2^142284451 is an apocalyptic number.

142284451 is the 5335-th centered decagonal number.

142284451 is a deficient number, since it is larger than the sum of its proper divisors (6451549).

142284451 is an equidigital number, since it uses as much as digits as its factorization.

142284451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58209.

The product of its digits is 10240, while the sum is 31.

The square root of 142284451 is about 11928.3046154934. The cubic root of 142284451 is about 522.0584715014.

The spelling of 142284451 in words is "one hundred forty-two million, two hundred eighty-four thousand, four hundred fifty-one".