3219945403 has 2 divisors, whose sum is σ = 3219945404. Its totient is φ = 3219945402.

The previous prime is 3219945397. The next prime is 3219945433. The reversal of 3219945403 is 3045499123.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3219945403 is a prime.

It is not a weakly prime, because it can be changed into another prime (3219945433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1609972701 + 1609972702.

It is an arithmetic number, because the mean of its divisors is an integer number (1609972702).

Almost surely, 2^3219945403 is an apocalyptic number.

3219945403 is a deficient number, since it is larger than the sum of its proper divisors (1).

3219945403 is an equidigital number, since it uses as much as digits as its factorization.

3219945403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 3219945403 is about 56744.5627615545. The cubic root of 3219945403 is about 1476.6679059133.

The spelling of 3219945403 in words is "three billion, two hundred nineteen million, nine hundred forty-five thousand, four hundred three".