1152351421 has 8 divisors (see below), whose sum is σ = 1274534744. Its totient is φ = 1034959680.

The previous prime is 1152351397. The next prime is 1152351439. The reversal of 1152351421 is 1241532511.

It can be written as a sum of positive squares in 4 ways, for example, as 557479321 + 594872100 = 23611^2 + 24390^2 .

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 1152351421 - 2⁷ = 1152351293 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 (1152351491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1197390 + ... + 1198351.

It is an arithmetic number, because the mean of its divisors is an integer number (159316843).

Almost surely, 2^1152351421 is an apocalyptic number.

It is an amenable number.

1152351421 is a deficient number, since it is larger than the sum of its proper divisors (122183323).

1152351421 is a wasteful number, since it uses less digits than its factorization.

1152351421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2395791.

The product of its digits is 1200, while the sum is 25.

The square root of 1152351421 is about 33946.3020224589. The cubic root of 1152351421 is about 1048.4031421659.

Adding to 1152351421 its reverse (1241532511), we get a palindrome (2393883932).

The spelling of 1152351421 in words is "one billion, one hundred fifty-two million, three hundred fifty-one thousand, four hundred twenty-one".