1452423409 has 2 divisors, whose sum is σ = 1452423410. Its totient is φ = 1452423408.

The previous prime is 1452423397. The next prime is 1452423437. The reversal of 1452423409 is 9043242541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1411655184 + 40768225 = 37572^2 + 6385^2 .

It is an emirp because it is prime and its reverse (9043242541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1452423409 - 2¹¹ = 1452421361 is a prime.

It is a super-2 number, since 2×1452423409² = 4219067518022362562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1452423449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 726211704 + 726211705.

It is an arithmetic number, because the mean of its divisors is an integer number (726211705).

Almost surely, 2^1452423409 is an apocalyptic number.

It is an amenable number.

1452423409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1452423409 is an equidigital number, since it uses as much as digits as its factorization.

1452423409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 1452423409 is about 38110.6731638264. The cubic root of 1452423409 is about 1132.4814055460.

The spelling of 1452423409 in words is "one billion, four hundred fifty-two million, four hundred twenty-three thousand, four hundred nine".