1154542225 has 12 divisors (see below), whose sum is σ = 1441118080. Its totient is φ = 917514000.

The previous prime is 1154542223. The next prime is 1154542237. The reversal of 1154542225 is 5222454511.

It is not a de Polignac number, because 1154542225 - 2¹ = 1154542223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1154542223) 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 in 11 ways as a sum of consecutive naturals, for example, 149145 + ... + 156694.

Almost surely, 2^1154542225 is an apocalyptic number.

It is an amenable number.

1154542225 is a deficient number, since it is larger than the sum of its proper divisors (286575855).

1154542225 is a wasteful number, since it uses less digits than its factorization.

1154542225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306000 (or 305995 counting only the distinct ones).

The product of its digits is 16000, while the sum is 31.

The square root of 1154542225 is about 33978.5553695268. Note that the first 3 decimals coincide. The cubic root of 1154542225 is about 1049.0671154800.

Adding to 1154542225 its reverse (5222454511), we get a palindrome (6376996736).

The spelling of 1154542225 in words is "one billion, one hundred fifty-four million, five hundred forty-two thousand, two hundred twenty-five".