1344520531 has 4 divisors (see below), whose sum is σ = 1423609992. Its totient is φ = 1265431072.

The previous prime is 1344520501. The next prime is 1344520537. The reversal of 1344520531 is 1350254431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1344520531 - 2⁹ = 1344520019 is a prime.

It is a super-2 number, since 2×1344520531² = 3615470916561043922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1344520531.

It is not an unprimeable number, because it can be changed into a prime (1344520537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39544705 + ... + 39544738.

It is an arithmetic number, because the mean of its divisors is an integer number (355902498).

Almost surely, 2^1344520531 is an apocalyptic number.

1344520531 is a deficient number, since it is larger than the sum of its proper divisors (79089461).

1344520531 is an equidigital number, since it uses as much as digits as its factorization.

1344520531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79089460.

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

The square root of 1344520531 is about 36667.7041959270. The cubic root of 1344520531 is about 1103.7121229532.

Adding to 1344520531 its reverse (1350254431), we get a palindrome (2694774962).

The spelling of 1344520531 in words is "one billion, three hundred forty-four million, five hundred twenty thousand, five hundred thirty-one".