1342002521 has 8 divisors (see below), whose sum is σ = 1390398600. Its totient is φ = 1293747840.

The previous prime is 1342002511. The next prime is 1342002539. The reversal of 1342002521 is 1252002431.

It can be written as a sum of positive squares in 4 ways, for example, as 171610000 + 1170392521 = 13100^2 + 34211^2 .

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 1342002521 - 2¹⁰ = 1342001497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1342002493 and 1342002502.

It is not an unprimeable number, because it can be changed into a prime (1342002511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15836 + ... + 54173.

It is an arithmetic number, because the mean of its divisors is an integer number (173799825).

Almost surely, 2^1342002521 is an apocalyptic number.

It is an amenable number.

1342002521 is a deficient number, since it is larger than the sum of its proper divisors (48396079).

1342002521 is an equidigital number, since it uses as much as digits as its factorization.

1342002521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70699.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1342002521 is about 36633.3525765797. The cubic root of 1342002521 is about 1103.0226838963.

Adding to 1342002521 its reverse (1252002431), we get a palindrome (2594004952).

The spelling of 1342002521 in words is "one billion, three hundred forty-two million, two thousand, five hundred twenty-one".