1155037749 has 64 divisors (see below), whose sum is σ = 1733529600. Its totient is φ = 680988672.

The previous prime is 1155037739. The next prime is 1155037753. The reversal of 1155037749 is 9477305511.

It is not a de Polignac number, because 1155037749 - 2⁹ = 1155037237 is a prime.

It is a super-2 number, since 2×1155037749² = 2668224403229974002, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1155037749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155037739) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10221517 + ... + 10221629.

It is an arithmetic number, because the mean of its divisors is an integer number (27086400).

Almost surely, 2^1155037749 is an apocalyptic number.

It is an amenable number.

1155037749 is a deficient number, since it is larger than the sum of its proper divisors (578491851).

1155037749 is a wasteful number, since it uses less digits than its factorization.

1155037749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314.

The product of its (nonzero) digits is 132300, while the sum is 42.

The square root of 1155037749 is about 33985.8463040131. The cubic root of 1155037749 is about 1049.2171788758.

The spelling of 1155037749 in words is "one billion, one hundred fifty-five million, thirty-seven thousand, seven hundred forty-nine".