1352012021 has 8 divisors (see below), whose sum is σ = 1398969600. Its totient is φ = 1305263520.

The previous prime is 1352012003. The next prime is 1352012029. The reversal of 1352012021 is 1202102531.

It is a happy number.

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 1352012021 - 2¹⁰ = 1352010997 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 (1352012029) 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 in 7 ways as a sum of consecutive naturals, for example, 39056 + ... + 65033.

It is an arithmetic number, because the mean of its divisors is an integer number (174871200).

Almost surely, 2^1352012021 is an apocalyptic number.

It is an amenable number.

1352012021 is a deficient number, since it is larger than the sum of its proper divisors (46957579).

1352012021 is a wasteful number, since it uses less digits than its factorization.

1352012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104539.

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

The square root of 1352012021 is about 36769.7160853874. The cubic root of 1352012021 is about 1105.7582399155.

Adding to 1352012021 its reverse (1202102531), we get a palindrome (2554114552).

The spelling of 1352012021 in words is "one billion, three hundred fifty-two million, twelve thousand, twenty-one".