1824145969 has 2 divisors, whose sum is σ = 1824145970. Its totient is φ = 1824145968.

The previous prime is 1824145963. The next prime is 1824145979. The reversal of 1824145969 is 9695414281.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1625702400 + 198443569 = 40320^2 + 14087^2 .

It is a cyclic number.

It is not a de Polignac number, because 1824145969 - 2⁵ = 1824145937 is a prime.

It is a super-2 number, since 2×1824145969² = 6655017032437897922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1824145963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 912072984 + 912072985.

It is an arithmetic number, because the mean of its divisors is an integer number (912072985).

Almost surely, 2^1824145969 is an apocalyptic number.

It is an amenable number.

1824145969 is a deficient number, since it is larger than the sum of its proper divisors (1).

1824145969 is an equidigital number, since it uses as much as digits as its factorization.

1824145969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 49.

The square root of 1824145969 is about 42710.0218801161. The cubic root of 1824145969 is about 1221.8555408749.

The spelling of 1824145969 in words is "one billion, eight hundred twenty-four million, one hundred forty-five thousand, nine hundred sixty-nine".