1342535521 has 4 divisors (see below), whose sum is σ = 1361444544. Its totient is φ = 1323626500.

The previous prime is 1342535503. The next prime is 1342535539. The reversal of 1342535521 is 1255352431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1342535503) and next prime (1342535539).

It is a cyclic number.

It is not a de Polignac number, because 1342535521 - 2⁷ = 1342535393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1342536521) 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 3 ways as a sum of consecutive naturals, for example, 9454405 + ... + 9454546.

It is an arithmetic number, because the mean of its divisors is an integer number (340361136).

Almost surely, 2^1342535521 is an apocalyptic number.

It is an amenable number.

1342535521 is a deficient number, since it is larger than the sum of its proper divisors (18909023).

1342535521 is an equidigital number, since it uses as much as digits as its factorization.

1342535521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18909022.

The product of its digits is 18000, while the sum is 31.

The square root of 1342535521 is about 36640.6266458422. The cubic root of 1342535521 is about 1103.1686928805.

Adding to 1342535521 its reverse (1255352431), we get a palindrome (2597887952).

The spelling of 1342535521 in words is "one billion, three hundred forty-two million, five hundred thirty-five thousand, five hundred twenty-one".