1344531403 has 4 divisors (see below), whose sum is σ = 1345325400. Its totient is φ = 1343737408.

The previous prime is 1344531389. The next prime is 1344531421. The reversal of 1344531403 is 3041354431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3041354431 = 26041 ⋅116791.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1344531403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1344531103) 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, 394453 + ... + 397846.

It is an arithmetic number, because the mean of its divisors is an integer number (336331350).

Almost surely, 2^1344531403 is an apocalyptic number.

1344531403 is a deficient number, since it is larger than the sum of its proper divisors (793997).

1344531403 is an equidigital number, since it uses as much as digits as its factorization.

1344531403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793996.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 1344531403 is about 36667.8524459778. The cubic root of 1344531403 is about 1103.7150978739.

Adding to 1344531403 its reverse (3041354431), we get a palindrome (4385885834).

The spelling of 1344531403 in words is "one billion, three hundred forty-four million, five hundred thirty-one thousand, four hundred three".