1145522552 has 8 divisors (see below), whose sum is σ = 2147854800. Its totient is φ = 572761272.

The previous prime is 1145522531. The next prime is 1145522561. The reversal of 1145522552 is 2552255411.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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, 71595152 + ... + 71595167.

It is an arithmetic number, because the mean of its divisors is an integer number (268481850).

Almost surely, 2^1145522552 is an apocalyptic number.

It is an amenable number.

1145522552 is a deficient number, since it is larger than the sum of its proper divisors (1002332248).

1145522552 is a wasteful number, since it uses less digits than its factorization.

1145522552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143190325 (or 143190321 counting only the distinct ones).

The product of its digits is 20000, while the sum is 32.

The square root of 1145522552 is about 33845.5691634814. The cubic root of 1145522552 is about 1046.3280816653.

Adding to 1145522552 its reverse (2552255411), we get a palindrome (3697777963).

The spelling of 1145522552 in words is "one billion, one hundred forty-five million, five hundred twenty-two thousand, five hundred fifty-two".