151032220 has 24 divisors (see below), whose sum is σ = 318011904. Its totient is φ = 60252096.

The previous prime is 151032179. The next prime is 151032229. The reversal of 151032220 is 22230151.

151032220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 151032194 and 151032203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151032229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2199 + ... + 17518.

It is an arithmetic number, because the mean of its divisors is an integer number (13250496).

Almost surely, 2^151032220 is an apocalyptic number.

151032220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151032220 is an abundant number, since it is smaller than the sum of its proper divisors (166979684).

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

151032220 is a wasteful number, since it uses less digits than its factorization.

151032220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20109 (or 20107 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 151032220 is about 12289.5166707239. The cubic root of 151032220 is about 532.5452744977.

Adding to 151032220 its reverse (22230151), we get a palindrome (173262371).

The spelling of 151032220 in words is "one hundred fifty-one million, thirty-two thousand, two hundred twenty".