151000121 has 2 divisors, whose sum is σ = 151000122. Its totient is φ = 151000120.

The previous prime is 151000117. The next prime is 151000123. The reversal of 151000121 is 121000151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125193721 + 25806400 = 11189^2 + 5080^2 .

It is a cyclic number.

It is not a de Polignac number, because 151000121 - 2² = 151000117 is a prime.

Together with 151000123, 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 (151000123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75500060 + 75500061.

It is an arithmetic number, because the mean of its divisors is an integer number (75500061).

Almost surely, 2^151000121 is an apocalyptic number.

It is an amenable number.

151000121 is a deficient number, since it is larger than the sum of its proper divisors (1).

151000121 is an equidigital number, since it uses as much as digits as its factorization.

151000121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10, while the sum is 11.

The square root of 151000121 is about 12288.2106508637. The cubic root of 151000121 is about 532.5075443985.

Adding to 151000121 its reverse (121000151), we get a palindrome (272000272).

The spelling of 151000121 in words is "one hundred fifty-one million, one hundred twenty-one", and thus it is an aban number.