147649917 has 8 divisors (see below), whose sum is σ = 201445024. Its totient is φ = 96144048.

The previous prime is 147649883. The next prime is 147649921. The reversal of 147649917 is 719946741.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 147649917 - 2¹⁵ = 147617149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147649937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 572158 + ... + 572415.

It is an arithmetic number, because the mean of its divisors is an integer number (25180628).

Almost surely, 2^147649917 is an apocalyptic number.

It is an amenable number.

147649917 is a deficient number, since it is larger than the sum of its proper divisors (53795107).

147649917 is a wasteful number, since it uses less digits than its factorization.

147649917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144619.

The product of its digits is 381024, while the sum is 48.

The square root of 147649917 is about 12151.1282192231. The cubic root of 147649917 is about 528.5398483028.

The spelling of 147649917 in words is "one hundred forty-seven million, six hundred forty-nine thousand, nine hundred seventeen".