1155738464 has 12 divisors (see below), whose sum is σ = 2275360164. Its totient is φ = 577869216.

The previous prime is 1155738449. The next prime is 1155738473. The reversal of 1155738464 is 4648375511.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

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, 18058382 + ... + 18058445.

It is an arithmetic number, because the mean of its divisors is an integer number (189613347).

Almost surely, 2^1155738464 is an apocalyptic number.

It is an amenable number.

1155738464 is a deficient number, since it is larger than the sum of its proper divisors (1119621700).

1155738464 is an equidigital number, since it uses as much as digits as its factorization.

1155738464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36116837 (or 36116829 counting only the distinct ones).

The product of its digits is 403200, while the sum is 44.

The square root of 1155738464 is about 33996.1536647898. The cubic root of 1155738464 is about 1049.4293086218.

The spelling of 1155738464 in words is "one billion, one hundred fifty-five million, seven hundred thirty-eight thousand, four hundred sixty-four".