147445649 has 8 divisors (see below), whose sum is σ = 158918760. Its totient is φ = 135991296.

The previous prime is 147445637. The next prime is 147445693. The reversal of 147445649 is 946544741.

147445649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 11560000 + 135885649 = 3400^2 + 11657^2 .

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 147445649 - 2²⁰ = 146397073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (147445049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14609 + ... + 22545.

It is an arithmetic number, because the mean of its divisors is an integer number (19864845).

Almost surely, 2^147445649 is an apocalyptic number.

It is an amenable number.

147445649 is a deficient number, since it is larger than the sum of its proper divisors (11473111).

147445649 is a wasteful number, since it uses less digits than its factorization.

147445649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9379.

The product of its digits is 483840, while the sum is 44.

The square root of 147445649 is about 12142.7200000659. The cubic root of 147445649 is about 528.2959976093.

The spelling of 147445649 in words is "one hundred forty-seven million, four hundred forty-five thousand, six hundred forty-nine".