152121251115 has 24 divisors (see below), whose sum is σ = 267288852480. Its totient is φ = 80019944064.

The previous prime is 152121251099. The next prime is 152121251159. The reversal of 152121251115 is 511152121251.

152121251115 is a `hidden beast` number, since 1 + 521 + 2 + 1 + 25 + 1 + 115 = 666.

It is not a de Polignac number, because 152121251115 - 2⁴ = 152121251099 is a prime.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 23150635 + ... + 23157204.

It is an arithmetic number, because the mean of its divisors is an integer number (11137035520).

Almost surely, 2^152121251115 is an apocalyptic number.

152121251115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

152121251115 is a deficient number, since it is larger than the sum of its proper divisors (115167601365).

152121251115 is a wasteful number, since it uses less digits than its factorization.

152121251115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46307923 (or 46307920 counting only the distinct ones).

The product of its digits is 1000, while the sum is 27.

Adding to 152121251115 its reverse (511152121251), we get a palindrome (663273372366).

The spelling of 152121251115 in words is "one hundred fifty-two billion, one hundred twenty-one million, two hundred fifty-one thousand, one hundred fifteen".