1447923345 has 32 divisors (see below), whose sum is σ = 2531053440. Its totient is φ = 700976640.

The previous prime is 1447923341. The next prime is 1447923349. The reversal of 1447923345 is 5433297441.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1447923341) and next prime (1447923349).

It is not a de Polignac number, because 1447923345 - 2² = 1447923341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1447923297 and 1447923306.

It is not an unprimeable number, because it can be changed into a prime (1447923341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110797 + ... + 123173.

It is an arithmetic number, because the mean of its divisors is an integer number (79095420).

Almost surely, 2^1447923345 is an apocalyptic number.

1447923345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1447923345 is a deficient number, since it is larger than the sum of its proper divisors (1083130095).

1447923345 is a wasteful number, since it uses less digits than its factorization.

1447923345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13105.

The product of its digits is 362880, while the sum is 42.

The square root of 1447923345 is about 38051.5879432120. The cubic root of 1447923345 is about 1131.3106011510.

The spelling of 1447923345 in words is "one billion, four hundred forty-seven million, nine hundred twenty-three thousand, three hundred forty-five".