101145449 has 2 divisors, whose sum is σ = 101145450. Its totient is φ = 101145448.

The previous prime is 101145419. The next prime is 101145463. The reversal of 101145449 is 944541101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99600400 + 1545049 = 9980^2 + 1243^2 .

It is a cyclic number.

It is not a de Polignac number, because 101145449 - 2²⁰ = 100096873 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (101145419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50572724 + 50572725.

It is an arithmetic number, because the mean of its divisors is an integer number (50572725).

Almost surely, 2^101145449 is an apocalyptic number.

It is an amenable number.

101145449 is a deficient number, since it is larger than the sum of its proper divisors (1).

101145449 is an equidigital number, since it uses as much as digits as its factorization.

101145449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 101145449 is about 10057.1093759589. The cubic root of 101145449 is about 465.9243938445.

The spelling of 101145449 in words is "one hundred one million, one hundred forty-five thousand, four hundred forty-nine".