142158547 has 2 divisors, whose sum is σ = 142158548. Its totient is φ = 142158546.

The previous prime is 142158509. The next prime is 142158557. The reversal of 142158547 is 745851241.

142158547 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (745851241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142158547 - 2²³ = 133769939 is a prime.

It is not a weakly prime, because it can be changed into another prime (142158557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71079273 + 71079274.

It is an arithmetic number, because the mean of its divisors is an integer number (71079274).

Almost surely, 2^142158547 is an apocalyptic number.

142158547 is a deficient number, since it is larger than the sum of its proper divisors (1).

142158547 is an equidigital number, since it uses as much as digits as its factorization.

142158547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 44800, while the sum is 37.

The square root of 142158547 is about 11923.0259162681. The cubic root of 142158547 is about 521.9044405063.

The spelling of 142158547 in words is "one hundred forty-two million, one hundred fifty-eight thousand, five hundred forty-seven".