1447649061 has 4 divisors (see below), whose sum is σ = 1930198752. Its totient is φ = 965099372.

The previous prime is 1447649053. The next prime is 1447649081. The reversal of 1447649061 is 1609467441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1447649061 - 2³ = 1447649053 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1447649081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241274841 + ... + 241274846.

It is an arithmetic number, because the mean of its divisors is an integer number (482549688).

Almost surely, 2^1447649061 is an apocalyptic number.

It is an amenable number.

1447649061 is a deficient number, since it is larger than the sum of its proper divisors (482549691).

1447649061 is an equidigital number, since it uses as much as digits as its factorization.

1447649061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482549690.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 1447649061 is about 38047.9836653666. The cubic root of 1447649061 is about 1131.2391609067.

The spelling of 1447649061 in words is "one billion, four hundred forty-seven million, six hundred forty-nine thousand, sixty-one".