1155254513 has 16 divisors (see below), whose sum is σ = 1337059200. Its totient is φ = 977723136.

The previous prime is 1155254491. The next prime is 1155254519. The reversal of 1155254513 is 3154525511.

It is a cyclic number.

It is not a de Polignac number, because 1155254513 - 2¹⁸ = 1154992369 is a prime.

It is a super-2 number, since 2×1155254513² = 2669225979613734338, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1155254513.

It is not an unprimeable number, because it can be changed into a prime (1155254519) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175913 + ... + 182361.

It is an arithmetic number, because the mean of its divisors is an integer number (83566200).

Almost surely, 2^1155254513 is an apocalyptic number.

It is an amenable number.

1155254513 is a deficient number, since it is larger than the sum of its proper divisors (181804687).

1155254513 is a wasteful number, since it uses less digits than its factorization.

1155254513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6776.

The product of its digits is 15000, while the sum is 32.

The square root of 1155254513 is about 33989.0351878367. The cubic root of 1155254513 is about 1049.2828097140.

The spelling of 1155254513 in words is "one billion, one hundred fifty-five million, two hundred fifty-four thousand, five hundred thirteen".