1354445399 has 2 divisors, whose sum is σ = 1354445400. Its totient is φ = 1354445398.

The previous prime is 1354445371. The next prime is 1354445467. The reversal of 1354445399 is 9935444531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1354445399 - 2²⁰ = 1353396823 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1354445299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677222699 + 677222700.

It is an arithmetic number, because the mean of its divisors is an integer number (677222700).

Almost surely, 2^1354445399 is an apocalyptic number.

1354445399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1354445399 is an equidigital number, since it uses as much as digits as its factorization.

1354445399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1166400, while the sum is 47.

The square root of 1354445399 is about 36802.7906414717. The cubic root of 1354445399 is about 1106.4212308430.

The spelling of 1354445399 in words is "one billion, three hundred fifty-four million, four hundred forty-five thousand, three hundred ninety-nine".