151530225 has 96 divisors (see below), whose sum is σ = 329026560. Its totient is φ = 59616000.

The previous prime is 151530217. The next prime is 151530227. The reversal of 151530225 is 522035151.

It is a happy number.

It is not a de Polignac number, because 151530225 - 2³ = 151530217 is a prime.

It is a super-2 number, since 2×151530225² = 45922818177101250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 151530195 and 151530204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151530227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 109035 + ... + 110415.

It is an arithmetic number, because the mean of its divisors is an integer number (3427360).

Almost surely, 2^151530225 is an apocalyptic number.

151530225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

151530225 is an abundant number, since it is smaller than the sum of its proper divisors (177496335).

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

151530225 is a wasteful number, since it uses less digits than its factorization.

151530225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431 (or 1426 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 151530225 is about 12309.7613705547. The cubic root of 151530225 is about 533.1299604363.

Adding to 151530225 its reverse (522035151), we get a palindrome (673565376).

The spelling of 151530225 in words is "one hundred fifty-one million, five hundred thirty thousand, two hundred twenty-five".