142025137 has 2 divisors, whose sum is σ = 142025138. Its totient is φ = 142025136.

The previous prime is 142025131. The next prime is 142025231. The reversal of 142025137 is 731520241.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81558961 + 60466176 = 9031^2 + 7776^2 .

It is an emirp because it is prime and its reverse (731520241) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142025137 is a prime.

It is a super-2 number, since 2×142025137² = 40342279079737538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (142025131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71012568 + 71012569.

It is an arithmetic number, because the mean of its divisors is an integer number (71012569).

Almost surely, 2^142025137 is an apocalyptic number.

It is an amenable number.

142025137 is a deficient number, since it is larger than the sum of its proper divisors (1).

142025137 is an equidigital number, since it uses as much as digits as its factorization.

142025137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 142025137 is about 11917.4299662301. The cubic root of 142025137 is about 521.7411273956.

Adding to 142025137 its reverse (731520241), we get a palindrome (873545378).

The spelling of 142025137 in words is "one hundred forty-two million, twenty-five thousand, one hundred thirty-seven".