142145599 has 2 divisors, whose sum is σ = 142145600. Its totient is φ = 142145598.

The previous prime is 142145561. The next prime is 142145603. The reversal of 142145599 is 995541241.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142145599 is a prime.

It is a super-3 number, since 3×142145599³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142145699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71072799 + 71072800.

It is an arithmetic number, because the mean of its divisors is an integer number (71072800).

Almost surely, 2^142145599 is an apocalyptic number.

142145599 is a deficient number, since it is larger than the sum of its proper divisors (1).

142145599 is an equidigital number, since it uses as much as digits as its factorization.

142145599 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 40.

The square root of 142145599 is about 11922.4829209356. The cubic root of 142145599 is about 521.8885947622. Note that the first 3 decimals are identical.

The spelling of 142145599 in words is "one hundred forty-two million, one hundred forty-five thousand, five hundred ninety-nine".