1150420447 has 24 divisors (see below), whose sum is σ = 1382161536. Its totient is φ = 952512000.

The previous prime is 1150420441. The next prime is 1150420471. The reversal of 1150420447 is 7440240511.

It is a de Polignac number, because none of the positive numbers 2^k-1150420447 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1150420441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54747 + ... + 72787.

It is an arithmetic number, because the mean of its divisors is an integer number (57590064).

Almost surely, 2^1150420447 is an apocalyptic number.

1150420447 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1150420447 is a deficient number, since it is larger than the sum of its proper divisors (231741089).

1150420447 is a wasteful number, since it uses less digits than its factorization.

1150420447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18111 (or 18100 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 1150420447 is about 33917.8485019318. The cubic root of 1150420447 is about 1047.8172181738.

Adding to 1150420447 its reverse (7440240511), we get a palindrome (8590660958).

The spelling of 1150420447 in words is "one billion, one hundred fifty million, four hundred twenty thousand, four hundred forty-seven".