1447020461 has 2 divisors, whose sum is σ = 1447020462. Its totient is φ = 1447020460.

The previous prime is 1447020409. The next prime is 1447020479. The reversal of 1447020461 is 1640207441.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1127683561 + 319336900 = 33581^2 + 17870^2 .

It is a cyclic number.

It is not a de Polignac number, because 1447020461 - 2⁶ = 1447020397 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1447020401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 723510230 + 723510231.

It is an arithmetic number, because the mean of its divisors is an integer number (723510231).

Almost surely, 2^1447020461 is an apocalyptic number.

It is an amenable number.

1447020461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1447020461 is an equidigital number, since it uses as much as digits as its factorization.

1447020461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 1447020461 is about 38039.7221467245. The cubic root of 1447020461 is about 1131.0754011703.

The spelling of 1447020461 in words is "one billion, four hundred forty-seven million, twenty thousand, four hundred sixty-one".