151043220 has 72 divisors (see below), whose sum is σ = 460212480. Its totient is φ = 40098240.

The previous prime is 151043203. The next prime is 151043239. The reversal of 151043220 is 22340151.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 151043193 and 151043202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41265 + ... + 44775.

It is an arithmetic number, because the mean of its divisors is an integer number (6391840).

Almost surely, 2^151043220 is an apocalyptic number.

151043220 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 151043220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230106240).

151043220 is an abundant number, since it is smaller than the sum of its proper divisors (309169260).

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

151043220 is a wasteful number, since it uses less digits than its factorization.

151043220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3765 (or 3760 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 151043220 is about 12289.9641984832. The cubic root of 151043220 is about 532.5582029881.

Adding to 151043220 its reverse (22340151), we get a palindrome (173383371).

The spelling of 151043220 in words is "one hundred fifty-one million, forty-three thousand, two hundred twenty".