151236220 has 12 divisors (see below), whose sum is σ = 317596104. Its totient is φ = 60494480.

The previous prime is 151236193. The next prime is 151236223. The reversal of 151236220 is 22632151.

151236220 is digitally balanced in base 2, 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 = 151236191 and 151236200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151236223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3780886 + ... + 3780925.

It is an arithmetic number, because the mean of its divisors is an integer number (26466342).

Almost surely, 2^151236220 is an apocalyptic number.

151236220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151236220 is an abundant number, since it is smaller than the sum of its proper divisors (166359884).

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

151236220 is a wasteful number, since it uses less digits than its factorization.

151236220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7561820 (or 7561818 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 151236220 is about 12297.8136268200. The cubic root of 151236220 is about 532.7849371769.

Adding to 151236220 its reverse (22632151), we get a palindrome (173868371).

The spelling of 151236220 in words is "one hundred fifty-one million, two hundred thirty-six thousand, two hundred twenty".