158202137 has 2 divisors, whose sum is σ = 158202138. Its totient is φ = 158202136.

The previous prime is 158202133. The next prime is 158202139. The reversal of 158202137 is 731202851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102191881 + 56010256 = 10109^2 + 7484^2 .

It is a cyclic number.

It is not a de Polignac number, because 158202137 - 2² = 158202133 is a prime.

Together with 158202139, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (158202133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79101068 + 79101069.

It is an arithmetic number, because the mean of its divisors is an integer number (79101069).

Almost surely, 2^158202137 is an apocalyptic number.

It is an amenable number.

158202137 is a deficient number, since it is larger than the sum of its proper divisors (1).

158202137 is an equidigital number, since it uses as much as digits as its factorization.

158202137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 158202137 is about 12577.8430980832. The cubic root of 158202137 is about 540.8424629824.

Adding to 158202137 its reverse (731202851), we get a palindrome (889404988).

The spelling of 158202137 in words is "one hundred fifty-eight million, two hundred two thousand, one hundred thirty-seven".