225149732 has 6 divisors (see below), whose sum is σ = 394012038. Its totient is φ = 112574864.

The previous prime is 225149731. The next prime is 225149767. The reversal of 225149732 is 237941522.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 219513856 + 5635876 = 14816^2 + 2374^2 .

It is a junction number, because it is equal to n+sod(n) for n = 225149692 and 225149701.

It is not an unprimeable number, because it can be changed into a prime (225149731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28143713 + ... + 28143720.

It is an arithmetic number, because the mean of its divisors is an integer number (65668673).

Almost surely, 2^225149732 is an apocalyptic number.

It is an amenable number.

225149732 is a deficient number, since it is larger than the sum of its proper divisors (168862306).

225149732 is a wasteful number, since it uses less digits than its factorization.

225149732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56287437 (or 56287435 counting only the distinct ones).

The product of its digits is 30240, while the sum is 35.

The square root of 225149732 is about 15004.9902365846. The cubic root of 225149732 is about 608.3550881985.

The spelling of 225149732 in words is "two hundred twenty-five million, one hundred forty-nine thousand, seven hundred thirty-two".