142545197 has 2 divisors, whose sum is σ = 142545198. Its totient is φ = 142545196.

The previous prime is 142545133. The next prime is 142545203. The reversal of 142545197 is 791545241.

142545197 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., 142539721 + 5476 = 11939^2 + 74^2 .

It is a cyclic number.

It is not a de Polignac number, because 142545197 - 2⁶ = 142545133 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142545197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142545797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71272598 + 71272599.

It is an arithmetic number, because the mean of its divisors is an integer number (71272599).

Almost surely, 2^142545197 is an apocalyptic number.

It is an amenable number.

142545197 is a deficient number, since it is larger than the sum of its proper divisors (1).

142545197 is an equidigital number, since it uses as much as digits as its factorization.

142545197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 38.

The square root of 142545197 is about 11939.2293302374. The cubic root of 142545197 is about 522.3771795289.

The spelling of 142545197 in words is "one hundred forty-two million, five hundred forty-five thousand, one hundred ninety-seven".