147789899 has 4 divisors (see below), whose sum is σ = 147891840. Its totient is φ = 147687960.

The previous prime is 147789893. The next prime is 147789907. The reversal of 147789899 is 998987741.

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

It is a cyclic number.

It is not a de Polignac number, because 147789899 - 2⁸ = 147789643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147789893) 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, 48764 + ... + 51705.

It is an arithmetic number, because the mean of its divisors is an integer number (36972960).

Almost surely, 2^147789899 is an apocalyptic number.

147789899 is a deficient number, since it is larger than the sum of its proper divisors (101941).

147789899 is a wasteful number, since it uses less digits than its factorization.

147789899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101940.

The product of its digits is 9144576, while the sum is 62.

The square root of 147789899 is about 12156.8868959121. The cubic root of 147789899 is about 528.7068259248.

The spelling of 147789899 in words is "one hundred forty-seven million, seven hundred eighty-nine thousand, eight hundred ninety-nine".