1152302021 has 8 divisors (see below), whose sum is σ = 1241320920. Its totient is φ = 1063337472.

The previous prime is 1152301999. The next prime is 1152302057. The reversal of 1152302021 is 1202032511.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 43744996 + 1108557025 = 6614^2 + 33295^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1152302021 - 2¹⁴ = 1152285637 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 (1152302321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37625 + ... + 60993.

It is an arithmetic number, because the mean of its divisors is an integer number (155165115).

Almost surely, 2^1152302021 is an apocalyptic number.

It is an amenable number.

1152302021 is a deficient number, since it is larger than the sum of its proper divisors (89018899).

1152302021 is a wasteful number, since it uses less digits than its factorization.

1152302021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27175.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1152302021 is about 33945.5743949046. The cubic root of 1152302021 is about 1048.3881606668.

Adding to 1152302021 its reverse (1202032511), we get a palindrome (2354334532).

The spelling of 1152302021 in words is "one billion, one hundred fifty-two million, three hundred two thousand, twenty-one".