142312401409 has 2 divisors, whose sum is σ = 142312401410. Its totient is φ = 142312401408.

The previous prime is 142312401383. The next prime is 142312401449. The reversal of 142312401409 is 904104213241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101812046400 + 40500355009 = 319080^2 + 201247^2 .

It is an emirp because it is prime and its reverse (904104213241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142312401409 - 2³³ = 133722466817 is a prime.

It is not a weakly prime, because it can be changed into another prime (142312401449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71156200704 + 71156200705.

It is an arithmetic number, because the mean of its divisors is an integer number (71156200705).

Almost surely, 2^142312401409 is an apocalyptic number.

It is an amenable number.

142312401409 is a deficient number, since it is larger than the sum of its proper divisors (1).

142312401409 is an equidigital number, since it uses as much as digits as its factorization.

142312401409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 31.

The spelling of 142312401409 in words is "one hundred forty-two billion, three hundred twelve million, four hundred one thousand, four hundred nine".