151401224 has 16 divisors (see below), whose sum is σ = 305714220. Its totient is φ = 69877440.

The previous prime is 151401191. The next prime is 151401287. The reversal of 151401224 is 422104151.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 135256900 + 16144324 = 11630^2 + 4018^2 .

It is a junction number, because it is equal to n+sod(n) for n = 151401196 and 151401205.

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, 727787 + ... + 727994.

Almost surely, 2^151401224 is an apocalyptic number.

It is an amenable number.

151401224 is an abundant number, since it is smaller than the sum of its proper divisors (154312996).

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

151401224 is a wasteful number, since it uses less digits than its factorization.

151401224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455800 (or 1455796 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 151401224 is about 12304.5204701362. The cubic root of 151401224 is about 532.9786290795.

Adding to 151401224 its reverse (422104151), we get a palindrome (573505375).

The spelling of 151401224 in words is "one hundred fifty-one million, four hundred one thousand, two hundred twenty-four".