142072187 has 2 divisors, whose sum is σ = 142072188. Its totient is φ = 142072186.

The previous prime is 142072181. The next prime is 142072201. The reversal of 142072187 is 781270241.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142072187 - 2²⁴ = 125294971 is a prime.

It is not a weakly prime, because it can be changed into another prime (142072181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71036093 + 71036094.

It is an arithmetic number, because the mean of its divisors is an integer number (71036094).

Almost surely, 2^142072187 is an apocalyptic number.

142072187 is a deficient number, since it is larger than the sum of its proper divisors (1).

142072187 is an equidigital number, since it uses as much as digits as its factorization.

142072187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 142072187 is about 11919.4038022042. The cubic root of 142072187 is about 521.7987350613.

The spelling of 142072187 in words is "one hundred forty-two million, seventy-two thousand, one hundred eighty-seven".