155137 has 2 divisors, whose sum is σ = 155138. Its totient is φ = 155136.

The previous prime is 155119. The next prime is 155153. The reversal of 155137 is 731551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78961 + 76176 = 281^2 + 276^2 .

It is a cyclic number.

It is not a de Polignac number, because 155137 - 2⁷ = 155009 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (155167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77568 + 77569.

It is an arithmetic number, because the mean of its divisors is an integer number (77569).

It is a Proth number, since it is equal to 303 ⋅ 2⁹ + 1 and 303 < 2⁹.

2¹⁵⁵¹³⁷ is an apocalyptic number.

It is an amenable number.

155137 is a deficient number, since it is larger than the sum of its proper divisors (1).

155137 is an equidigital number, since it uses as much as digits as its factorization.

155137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 525, while the sum is 22.

The square root of 155137 is about 393.8743454453. The cubic root of 155137 is about 53.7326751447.

Adding to 155137 its reverse (731551), we get a palindrome (886688).

It can be divided in two parts, 155 and 137, that added together give a palindrome (292).

The spelling of 155137 in words is "one hundred fifty-five thousand, one hundred thirty-seven".