142870087 has 2 divisors, whose sum is σ = 142870088. Its totient is φ = 142870086.

The previous prime is 142870069. The next prime is 142870097. The reversal of 142870087 is 780078241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142870087 - 2⁷ = 142869959 is a prime.

It is a super-3 number, since 3×142870087³ (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 (142870067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71435043 + 71435044.

It is an arithmetic number, because the mean of its divisors is an integer number (71435044).

Almost surely, 2^142870087 is an apocalyptic number.

142870087 is a deficient number, since it is larger than the sum of its proper divisors (1).

142870087 is an equidigital number, since it uses as much as digits as its factorization.

142870087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25088, while the sum is 37.

The square root of 142870087 is about 11952.8275734238. The cubic root of 142870087 is about 522.7737469565.

The spelling of 142870087 in words is "one hundred forty-two million, eight hundred seventy thousand, eighty-seven".