1342552321 has 32 divisors (see below), whose sum is σ = 1545578496. Its totient is φ = 1155336000.

The previous prime is 1342552313. The next prime is 1342552327. The reversal of 1342552321 is 1232552431.

1342552321 = 151² + 152² + ... + 1591².

It is a cyclic number.

It is not a de Polignac number, because 1342552321 - 2³ = 1342552313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1342552321.

It is not an unprimeable number, because it can be changed into a prime (1342552327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2912031 + ... + 2912491.

It is an arithmetic number, because the mean of its divisors is an integer number (48299328).

Almost surely, 2^1342552321 is an apocalyptic number.

1342552321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1342552321 is a deficient number, since it is larger than the sum of its proper divisors (203026175).

1342552321 is a wasteful number, since it uses less digits than its factorization.

1342552321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693.

The product of its digits is 7200, while the sum is 28.

The square root of 1342552321 is about 36640.8558988460. The cubic root of 1342552321 is about 1103.1732944116.

The spelling of 1342552321 in words is "one billion, three hundred forty-two million, five hundred fifty-two thousand, three hundred twenty-one".