147464561 has 4 divisors (see below), whose sum is σ = 147572724. Its totient is φ = 147356400.

The previous prime is 147464549. The next prime is 147464563. The reversal of 147464561 is 165464741.

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

It can be written as a sum of positive squares in 2 ways, for example, as 111091600 + 36372961 = 10540^2 + 6031^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147464561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147464563) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 52010 + ... + 54771.

It is an arithmetic number, because the mean of its divisors is an integer number (36893181).

Almost surely, 2^147464561 is an apocalyptic number.

It is an amenable number.

147464561 is a deficient number, since it is larger than the sum of its proper divisors (108163).

147464561 is a wasteful number, since it uses less digits than its factorization.

147464561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108162.

The product of its digits is 80640, while the sum is 38.

The square root of 147464561 is about 12143.4987133033. The cubic root of 147464561 is about 528.3185838003.

The spelling of 147464561 in words is "one hundred forty-seven million, four hundred sixty-four thousand, five hundred sixty-one".