1345983403 has 2 divisors, whose sum is σ = 1345983404. Its totient is φ = 1345983402.

The previous prime is 1345983371. The next prime is 1345983481. The reversal of 1345983403 is 3043895431.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1345983403 - 2⁵ = 1345983371 is a prime.

It is not a weakly prime, because it can be changed into another prime (1345983493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672991701 + 672991702.

It is an arithmetic number, because the mean of its divisors is an integer number (672991702).

Almost surely, 2^1345983403 is an apocalyptic number.

1345983403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1345983403 is an equidigital number, since it uses as much as digits as its factorization.

1345983403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 1345983403 is about 36687.6464630807. The cubic root of 1345983403 is about 1104.1122666738.

The spelling of 1345983403 in words is "one billion, three hundred forty-five million, nine hundred eighty-three thousand, four hundred three".