1340465003 has 4 divisors (see below), whose sum is σ = 1340620488. Its totient is φ = 1340309520.

The previous prime is 1340464981. The next prime is 1340465039. The reversal of 1340465003 is 3005640431.

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 1340465003 - 2¹⁸ = 1340202859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1340465083) 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, 64001 + ... + 82322.

It is an arithmetic number, because the mean of its divisors is an integer number (335155122).

Almost surely, 2^1340465003 is an apocalyptic number.

1340465003 is a deficient number, since it is larger than the sum of its proper divisors (155485).

1340465003 is an equidigital number, since it uses as much as digits as its factorization.

1340465003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155484.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 1340465003 is about 36612.3613414923. The cubic root of 1340465003 is about 1102.6012824753.

The spelling of 1340465003 in words is "one billion, three hundred forty million, four hundred sixty-five thousand, three".