142070857 has 2 divisors, whose sum is σ = 142070858. Its totient is φ = 142070856.

The previous prime is 142070833. The next prime is 142070867. The reversal of 142070857 is 758070241.

It is a happy number.

142070857 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 can be written as a sum of positive squares in only one way, i.e., 91604041 + 50466816 = 9571^2 + 7104^2 .

It is a cyclic number.

It is not a de Polignac number, because 142070857 - 2⁷ = 142070729 is a prime.

It is not a weakly prime, because it can be changed into another prime (142070867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71035428 + 71035429.

It is an arithmetic number, because the mean of its divisors is an integer number (71035429).

Almost surely, 2^142070857 is an apocalyptic number.

It is an amenable number.

142070857 is a deficient number, since it is larger than the sum of its proper divisors (1).

142070857 is an equidigital number, since it uses as much as digits as its factorization.

142070857 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 34.

The square root of 142070857 is about 11919.3480106925. The cubic root of 142070857 is about 521.7971067940.

The spelling of 142070857 in words is "one hundred forty-two million, seventy thousand, eight hundred fifty-seven".