147718949 has 16 divisors (see below), whose sum is σ = 179159040. Its totient is φ = 119050800.

The previous prime is 147718943. The next prime is 147718951. The reversal of 147718949 is 949817741.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147718949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 147718897 and 147718906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147718943) 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 15 ways as a sum of consecutive naturals, for example, 1724 + ... + 17274.

It is an arithmetic number, because the mean of its divisors is an integer number (11197440).

Almost surely, 2^147718949 is an apocalyptic number.

It is an amenable number.

147718949 is a deficient number, since it is larger than the sum of its proper divisors (31440091).

147718949 is a wasteful number, since it uses less digits than its factorization.

147718949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15640.

The product of its digits is 508032, while the sum is 50.

The square root of 147718949 is about 12153.9684465610. The cubic root of 147718949 is about 528.6222063535.

The spelling of 147718949 in words is "one hundred forty-seven million, seven hundred eighteen thousand, nine hundred forty-nine".