1145013556 has 6 divisors (see below), whose sum is σ = 2003773730. Its totient is φ = 572506776.

The previous prime is 1145013517. The next prime is 1145013559. The reversal of 1145013556 is 6553105411.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 852056100 + 292957456 = 29190^2 + 17116^2 .

It is a super-2 number, since 2×1145013556² = 2622112086847530272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145013559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143126691 + ... + 143126698.

Almost surely, 2^1145013556 is an apocalyptic number.

It is an amenable number.

1145013556 is a deficient number, since it is larger than the sum of its proper divisors (858760174).

1145013556 is a wasteful number, since it uses less digits than its factorization.

1145013556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286253393 (or 286253391 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 1145013556 is about 33838.0489390272. The cubic root of 1145013556 is about 1046.1730852381.

Adding to 1145013556 its reverse (6553105411), we get a palindrome (7698118967).

The spelling of 1145013556 in words is "one billion, one hundred forty-five million, thirteen thousand, five hundred fifty-six".