147944487 has 8 divisors (see below), whose sum is σ = 205835904. Its totient is φ = 94341368.

The previous prime is 147944479. The next prime is 147944551. The reversal of 147944487 is 784449741.

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 147944487 - 2³ = 147944479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147944437) 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 7 ways as a sum of consecutive naturals, for example, 1071993 + ... + 1072130.

It is an arithmetic number, because the mean of its divisors is an integer number (25729488).

Almost surely, 2^147944487 is an apocalyptic number.

147944487 is a deficient number, since it is larger than the sum of its proper divisors (57891417).

147944487 is a wasteful number, since it uses less digits than its factorization.

147944487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2144149.

The product of its digits is 903168, while the sum is 48.

The square root of 147944487 is about 12163.2432763634. The cubic root of 147944487 is about 528.8911038555.

The spelling of 147944487 in words is "one hundred forty-seven million, nine hundred forty-four thousand, four hundred eighty-seven".