1131515044 has 45 divisors (see below), whose sum is σ = 2193935835. Its totient is φ = 510624840.

The previous prime is 1131515017. The next prime is 1131515057. The reversal of 1131515044 is 4405151311.

The square root of 1131515044 is 33638.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian 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 in 14 ways as a sum of consecutive naturals, for example, 8140327 + ... + 8140465.

Almost surely, 2^1131515044 is an apocalyptic number.

1131515044 is the 33638-th square number.

It is an amenable number.

1131515044 is a deficient number, since it is larger than the sum of its proper divisors (1062420791).

1131515044 is an frugal number, since it uses more digits than its factorization.

1131515044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The cubic root of 1131515044 is about 1042.0457280045.

Multiplying 1131515044 by its sum of digits (25), we get a square (28287876100 = 168190²).

Adding to 1131515044 its reverse (4405151311), we get a palindrome (5536666355).

The spelling of 1131515044 in words is "one billion, one hundred thirty-one million, five hundred fifteen thousand, forty-four".