147489993 has 12 divisors (see below), whose sum is σ = 243475648. Its totient is φ = 84279960.

The previous prime is 147489967. The next prime is 147490001. The reversal of 147489993 is 399984741.

147489993 is a `hidden beast` number, since 1 + 474 + 89 + 9 + 93 = 666.

It is not a de Polignac number, because 147489993 - 2¹³ = 147481801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147489193) 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 11 ways as a sum of consecutive naturals, for example, 1170493 + ... + 1170618.

Almost surely, 2^147489993 is an apocalyptic number.

It is an amenable number.

147489993 is a deficient number, since it is larger than the sum of its proper divisors (95985655).

147489993 is a wasteful number, since it uses less digits than its factorization.

147489993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2341124 (or 2341121 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The square root of 147489993 is about 12144.5458128330. The cubic root of 147489993 is about 528.3489536415.

The spelling of 147489993 in words is "one hundred forty-seven million, four hundred eighty-nine thousand, nine hundred ninety-three".