1152261644 has 6 divisors (see below), whose sum is σ = 2016457884. Its totient is φ = 576130820.

The previous prime is 1152261641. The next prime is 1152261647. The reversal of 1152261644 is 4461622511.

It is an interprime number because it is at equal distance from previous prime (1152261641) and next prime (1152261647).

It is a self number, because there is not a number n which added to its sum of digits gives 1152261644.

It is not an unprimeable number, because it can be changed into a prime (1152261641) by changing a digit.

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, 144032702 + ... + 144032709.

It is an arithmetic number, because the mean of its divisors is an integer number (336076314).

Almost surely, 2^1152261644 is an apocalyptic number.

It is an amenable number.

1152261644 is a deficient number, since it is larger than the sum of its proper divisors (864196240).

1152261644 is a wasteful number, since it uses less digits than its factorization.

1152261644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288065415 (or 288065413 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 1152261644 is about 33944.9796582646. The cubic root of 1152261644 is about 1048.3759152478.

The spelling of 1152261644 in words is "one billion, one hundred fifty-two million, two hundred sixty-one thousand, six hundred forty-four".