151204220 has 12 divisors (see below), whose sum is σ = 317528904. Its totient is φ = 60481680.

The previous prime is 151204213. The next prime is 151204253. The reversal of 151204220 is 22402151.

It is a super-2 number, since 2×151204220² = 45725432291616800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3780086 + ... + 3780125.

It is an arithmetic number, because the mean of its divisors is an integer number (26460742).

Almost surely, 2^151204220 is an apocalyptic number.

151204220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151204220 is an abundant number, since it is smaller than the sum of its proper divisors (166324684).

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

151204220 is a wasteful number, since it uses less digits than its factorization.

151204220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7560220 (or 7560218 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 151204220 is about 12296.5125137170. The cubic root of 151204220 is about 532.7473572890.

Adding to 151204220 its reverse (22402151), we get a palindrome (173606371).

The spelling of 151204220 in words is "one hundred fifty-one million, two hundred four thousand, two hundred twenty".