142400100409 has 4 divisors (see below), whose sum is σ = 162742971904. Its totient is φ = 122057228916.

The previous prime is 142400100397. The next prime is 142400100433. The reversal of 142400100409 is 904001004241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 142400100409 - 2²¹ = 142398003257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142400100509) 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 3 ways as a sum of consecutive naturals, for example, 10171435737 + ... + 10171435750.

It is an arithmetic number, because the mean of its divisors is an integer number (40685742976).

Almost surely, 2^142400100409 is an apocalyptic number.

It is an amenable number.

142400100409 is a deficient number, since it is larger than the sum of its proper divisors (20342871495).

142400100409 is an equidigital number, since it uses as much as digits as its factorization.

142400100409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20342871494.

The product of its (nonzero) digits is 1152, while the sum is 25.

The spelling of 142400100409 in words is "one hundred forty-two billion, four hundred million, one hundred thousand, four hundred nine".