142621411 has 8 divisors (see below), whose sum is σ = 149499504. Its totient is φ = 135905280.

The previous prime is 142621387. The next prime is 142621417. The reversal of 142621411 is 114126241.

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 142621411 - 2¹¹ = 142619363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142621417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38686 + ... + 42211.

It is an arithmetic number, because the mean of its divisors is an integer number (18687438).

Almost surely, 2^142621411 is an apocalyptic number.

142621411 is a deficient number, since it is larger than the sum of its proper divisors (6878093).

142621411 is an equidigital number, since it uses as much as digits as its factorization.

142621411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80981.

The product of its digits is 384, while the sum is 22.

The square root of 142621411 is about 11942.4206507726. The cubic root of 142621411 is about 522.4702619614.

Adding to 142621411 its reverse (114126241), we get a palindrome (256747652).

The spelling of 142621411 in words is "one hundred forty-two million, six hundred twenty-one thousand, four hundred eleven".