142571087 has 2 divisors, whose sum is σ = 142571088. Its totient is φ = 142571086.

The previous prime is 142571071. The next prime is 142571111. The reversal of 142571087 is 780175241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142571087 - 2⁴ = 142571071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142571017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71285543 + 71285544.

It is an arithmetic number, because the mean of its divisors is an integer number (71285544).

Almost surely, 2^142571087 is an apocalyptic number.

142571087 is a deficient number, since it is larger than the sum of its proper divisors (1).

142571087 is an equidigital number, since it uses as much as digits as its factorization.

142571087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15680, while the sum is 35.

The square root of 142571087 is about 11940.3135218469. The cubic root of 142571087 is about 522.4088034788.

The spelling of 142571087 in words is "one hundred forty-two million, five hundred seventy-one thousand, eighty-seven".