1147446145 has 8 divisors (see below), whose sum is σ = 1385181504. Its totient is φ = 912459504.

The previous prime is 1147446133. The next prime is 1147446151. The reversal of 1147446145 is 5416447411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1147446145 - 2⁷ = 1147446017 is a prime.

It is a super-2 number, since 2×1147446145² = 2633265311350722050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 686259 + ... + 687928.

It is an arithmetic number, because the mean of its divisors is an integer number (173147688).

Almost surely, 2^1147446145 is an apocalyptic number.

It is an amenable number.

1147446145 is a deficient number, since it is larger than the sum of its proper divisors (237735359).

1147446145 is a wasteful number, since it uses less digits than its factorization.

1147446145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1374359.

The product of its digits is 53760, while the sum is 37.

The square root of 1147446145 is about 33873.9744494206. The cubic root of 1147446145 is about 1046.9134284490.

The spelling of 1147446145 in words is "one billion, one hundred forty-seven million, four hundred forty-six thousand, one hundred forty-five".