147966549 has 4 divisors (see below), whose sum is σ = 197288736. Its totient is φ = 98644364.

The previous prime is 147966479. The next prime is 147966551. The reversal of 147966549 is 945669741.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 945669741 = 3 ⋅315223247.

It is a cyclic number.

It is not a de Polignac number, because 147966549 - 2¹¹ = 147964501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147966349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24661089 + ... + 24661094.

It is an arithmetic number, because the mean of its divisors is an integer number (49322184).

Almost surely, 2^147966549 is an apocalyptic number.

It is an amenable number.

147966549 is a deficient number, since it is larger than the sum of its proper divisors (49322187).

147966549 is an equidigital number, since it uses as much as digits as its factorization.

147966549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49322186.

The product of its digits is 1632960, while the sum is 51.

The square root of 147966549 is about 12164.1501552718. The cubic root of 147966549 is about 528.9173925800.

The spelling of 147966549 in words is "one hundred forty-seven million, nine hundred sixty-six thousand, five hundred forty-nine".