1156441544 has 8 divisors (see below), whose sum is σ = 2168327910. Its totient is φ = 578220768.

The previous prime is 1156441543. The next prime is 1156441567. The reversal of 1156441544 is 4451446511.

It can be written as a sum of positive squares in only one way, i.e., 1065239044 + 91202500 = 32638^2 + 9550^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1156441543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72277589 + ... + 72277604.

Almost surely, 2^1156441544 is an apocalyptic number.

It is an amenable number.

1156441544 is a deficient number, since it is larger than the sum of its proper divisors (1011886366).

1156441544 is a wasteful number, since it uses less digits than its factorization.

1156441544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144555199 (or 144555195 counting only the distinct ones).

The product of its digits is 38400, while the sum is 35.

The square root of 1156441544 is about 34006.4926741939. The cubic root of 1156441544 is about 1049.6420681732.

The spelling of 1156441544 in words is "one billion, one hundred fifty-six million, four hundred forty-one thousand, five hundred forty-four".