142734621 has 8 divisors (see below), whose sum is σ = 190567264. Its totient is φ = 95029200.

The previous prime is 142734617. The next prime is 142734643. The reversal of 142734621 is 126437241.

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

It is not a de Polignac number, because 142734621 - 2² = 142734617 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 (142734611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29155 + ... + 33696.

It is an arithmetic number, because the mean of its divisors is an integer number (23820908).

Almost surely, 2^142734621 is an apocalyptic number.

It is an amenable number.

142734621 is a deficient number, since it is larger than the sum of its proper divisors (47832643).

142734621 is an equidigital number, since it uses as much as digits as its factorization.

142734621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63611.

The product of its digits is 8064, while the sum is 30.

The square root of 142734621 is about 11947.1595368941. The cubic root of 142734621 is about 522.6084675189.

The spelling of 142734621 in words is "one hundred forty-two million, seven hundred thirty-four thousand, six hundred twenty-one".