151115020 has 72 divisors (see below), whose sum is σ = 371165760. Its totient is φ = 51528960.

The previous prime is 151115009. The next prime is 151115021. The reversal of 151115020 is 20511151.

It is a junction number, because it is equal to n+sod(n) for n = 151114985 and 151115003.

It is not an unprimeable number, because it can be changed into a prime (151115021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 265296 + ... + 265864.

It is an arithmetic number, because the mean of its divisors is an integer number (5155080).

Almost surely, 2^151115020 is an apocalyptic number.

151115020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 151115020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185582880).

151115020 is an abundant number, since it is smaller than the sum of its proper divisors (220050740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

151115020 is a wasteful number, since it uses less digits than its factorization.

151115020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863 (or 854 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 16.

The square root of 151115020 is about 12292.8849339771. The cubic root of 151115020 is about 532.6425753544.

Adding to 151115020 its reverse (20511151), we get a palindrome (171626171).

The spelling of 151115020 in words is "one hundred fifty-one million, one hundred fifteen thousand, twenty".