447653149 has 2 divisors, whose sum is σ = 447653150. Its totient is φ = 447653148.

The previous prime is 447653111. The next prime is 447653189. The reversal of 447653149 is 941356744.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 442892025 + 4761124 = 21045^2 + 2182^2 .

It is a cyclic number.

It is not a de Polignac number, because 447653149 - 2¹⁷ = 447522077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (447653189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223826574 + 223826575.

It is an arithmetic number, because the mean of its divisors is an integer number (223826575).

Almost surely, 2^447653149 is an apocalyptic number.

It is an amenable number.

447653149 is a deficient number, since it is larger than the sum of its proper divisors (1).

447653149 is an equidigital number, since it uses as much as digits as its factorization.

447653149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 43.

The square root of 447653149 is about 21157.8153172770. The cubic root of 447653149 is about 764.9749512638.

The spelling of 447653149 in words is "four hundred forty-seven million, six hundred fifty-three thousand, one hundred forty-nine".