151121115 has 36 divisors (see below), whose sum is σ = 265286736. Its totient is φ = 79580928.

The previous prime is 151121083. The next prime is 151121119. The reversal of 151121115 is 511121151.

151121115 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 151121115 - 2⁵ = 151121083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (151121119) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 574474 + ... + 574736.

It is an arithmetic number, because the mean of its divisors is an integer number (7369076).

Almost surely, 2^151121115 is an apocalyptic number.

151121115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

151121115 is a deficient number, since it is larger than the sum of its proper divisors (114165621).

151121115 is a wasteful number, since it uses less digits than its factorization.

151121115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500 (or 384 counting only the distinct ones).

The product of its digits is 50, while the sum is 18.

The square root of 151121115 is about 12293.1328391098. The cubic root of 151121115 is about 532.6497363740.

Adding to 151121115 its reverse (511121151), we get a palindrome (662242266).

The spelling of 151121115 in words is "one hundred fifty-one million, one hundred twenty-one thousand, one hundred fifteen".