1453405439 has 2 divisors, whose sum is σ = 1453405440. Its totient is φ = 1453405438.

The previous prime is 1453405403. The next prime is 1453405477. The reversal of 1453405439 is 9345043541.

It is an a-pointer prime, because the next prime (1453405477) can be obtained adding 1453405439 to its sum of digits (38).

It is a weak prime.

It is an emirp because it is prime and its reverse (9345043541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1453405439 - 2⁸ = 1453405183 is a prime.

It is a super-2 number, since 2×1453405439² = 4224774740229565442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1453405039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 726702719 + 726702720.

It is an arithmetic number, because the mean of its divisors is an integer number (726702720).

Almost surely, 2^1453405439 is an apocalyptic number.

1453405439 is a deficient number, since it is larger than the sum of its proper divisors (1).

1453405439 is an equidigital number, since it uses as much as digits as its factorization.

1453405439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 38.

The square root of 1453405439 is about 38123.5549103176. The cubic root of 1453405439 is about 1132.7365836969.

The spelling of 1453405439 in words is "one billion, four hundred fifty-three million, four hundred five thousand, four hundred thirty-nine".