1152732013 has 4 divisors (see below), whose sum is σ = 1153912860. Its totient is φ = 1151551168.

The previous prime is 1152732001. The next prime is 1152732023. The reversal of 1152732013 is 3102372511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3102372511 = 7 ⋅443196073.

It can be written as a sum of positive squares in 2 ways, for example, as 1051186084 + 101545929 = 32422^2 + 10077^2 .

It is a cyclic number.

It is not a de Polignac number, because 1152732013 - 2²¹ = 1150634861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1152732023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 588958 + ... + 590911.

It is an arithmetic number, because the mean of its divisors is an integer number (288478215).

Almost surely, 2^1152732013 is an apocalyptic number.

It is an amenable number.

1152732013 is a deficient number, since it is larger than the sum of its proper divisors (1180847).

1152732013 is an equidigital number, since it uses as much as digits as its factorization.

1152732013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180846.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 1152732013 is about 33951.9073543741. The cubic root of 1152732013 is about 1048.5185496483.

The spelling of 1152732013 in words is "one billion, one hundred fifty-two million, seven hundred thirty-two thousand, thirteen".