142719001 has 2 divisors, whose sum is σ = 142719002. Its totient is φ = 142719000.

The previous prime is 142718999. The next prime is 142719007. The reversal of 142719001 is 100917241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110229001 + 32490000 = 10499^2 + 5700^2 .

It is a cyclic number.

It is not a de Polignac number, because 142719001 - 2¹ = 142718999 is a prime.

Together with 142718999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (142719007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71359500 + 71359501.

It is an arithmetic number, because the mean of its divisors is an integer number (71359501).

Almost surely, 2^142719001 is an apocalyptic number.

It is an amenable number.

142719001 is a deficient number, since it is larger than the sum of its proper divisors (1).

142719001 is an equidigital number, since it uses as much as digits as its factorization.

142719001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 142719001 is about 11946.5058071388. The cubic root of 142719001 is about 522.5894031368.

The spelling of 142719001 in words is "one hundred forty-two million, seven hundred nineteen thousand, one".