151315121 has 2 divisors, whose sum is σ = 151315122. Its totient is φ = 151315120.

The previous prime is 151315097. The next prime is 151315141. The reversal of 151315121 is 121513151.

It is a happy number.

It is an a-pointer prime, because the next prime (151315141) can be obtained adding 151315121 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126315121 + 25000000 = 11239^2 + 5000^2 .

It is a cyclic number.

It is not a de Polignac number, because 151315121 - 2¹⁴ = 151298737 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 151315093 and 151315102.

It is not a weakly prime, because it can be changed into another prime (151315141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75657560 + 75657561.

It is an arithmetic number, because the mean of its divisors is an integer number (75657561).

Almost surely, 2^151315121 is an apocalyptic number.

It is an amenable number.

151315121 is a deficient number, since it is larger than the sum of its proper divisors (1).

151315121 is an equidigital number, since it uses as much as digits as its factorization.

151315121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 150, while the sum is 20.

The square root of 151315121 is about 12301.0211364748. The cubic root of 151315121 is about 532.8775736192.

Adding to 151315121 its reverse (121513151), we get a palindrome (272828272).

The spelling of 151315121 in words is "one hundred fifty-one million, three hundred fifteen thousand, one hundred twenty-one".