151515121 has 8 divisors (see below), whose sum is σ = 152632800. Its totient is φ = 150402048.

The previous prime is 151515097. The next prime is 151515149. The reversal of 151515121 is 121515151.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 151515121 - 2¹⁷ = 151384049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 151515092 and 151515101.

It is not an unprimeable number, because it can be changed into a prime (151315121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88330 + ... + 90028.

It is an arithmetic number, because the mean of its divisors is an integer number (19079100).

Almost surely, 2^151515121 is an apocalyptic number.

It is an amenable number.

151515121 is a deficient number, since it is larger than the sum of its proper divisors (1117679).

151515121 is a wasteful number, since it uses less digits than its factorization.

151515121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2303.

The product of its digits is 250, while the sum is 22.

The square root of 151515121 is about 12309.1478584019. The cubic root of 151515121 is about 533.1122463411.

The spelling of 151515121 in words is "one hundred fifty-one million, five hundred fifteen thousand, one hundred twenty-one".