1147106371447 has 4 divisors (see below), whose sum is σ = 1184109802816. Its totient is φ = 1110102940080.

The previous prime is 1147106371387. The next prime is 1147106371459. The reversal of 1147106371447 is 7441736017411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1147106371447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1147106371397 and 1147106371406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1147106371247) 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, 18501715638 + ... + 18501715699.

It is an arithmetic number, because the mean of its divisors is an integer number (296027450704).

Almost surely, 2^{1147106371447} is an apocalyptic number.

1147106371447 is a deficient number, since it is larger than the sum of its proper divisors (37003431369).

1147106371447 is an equidigital number, since it uses as much as digits as its factorization.

1147106371447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37003431368.

The product of its (nonzero) digits is 395136, while the sum is 46.

The spelling of 1147106371447 in words is "one trillion, one hundred forty-seven billion, one hundred six million, three hundred seventy-one thousand, four hundred forty-seven".