153135121 has 2 divisors, whose sum is σ = 153135122. Its totient is φ = 153135120.

The previous prime is 153135107. The next prime is 153135137. The reversal of 153135121 is 121531351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90155025 + 62980096 = 9495^2 + 7936^2 .

It is a cyclic number.

It is not a de Polignac number, because 153135121 - 2²³ = 144746513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 153135092 and 153135101.

It is not a weakly prime, because it can be changed into another prime (153132121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76567560 + 76567561.

It is an arithmetic number, because the mean of its divisors is an integer number (76567561).

Almost surely, 2^153135121 is an apocalyptic number.

It is an amenable number.

153135121 is a deficient number, since it is larger than the sum of its proper divisors (1).

153135121 is an equidigital number, since it uses as much as digits as its factorization.

153135121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 450, while the sum is 22.

The square root of 153135121 is about 12374.7776141634. Note that the first 3 decimals coincide. The cubic root of 153135121 is about 535.0055270632.

Adding to 153135121 its reverse (121531351), we get a palindrome (274666472).

The spelling of 153135121 in words is "one hundred fifty-three million, one hundred thirty-five thousand, one hundred twenty-one".