147919909 has 8 divisors (see below), whose sum is σ = 150234048. Its totient is φ = 145612320.

The previous prime is 147919901. The next prime is 147919913. The reversal of 147919909 is 909919741.

It is a happy number.

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 147919909 - 2³ = 147919901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147919901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63249 + ... + 65545.

It is an arithmetic number, because the mean of its divisors is an integer number (18779256).

Almost surely, 2^147919909 is an apocalyptic number.

It is an amenable number.

147919909 is a deficient number, since it is larger than the sum of its proper divisors (2314139).

147919909 is an equidigital number, since it uses as much as digits as its factorization.

147919909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3275.

The product of its (nonzero) digits is 183708, while the sum is 49.

The square root of 147919909 is about 12162.2328953198. The cubic root of 147919909 is about 528.8618140281.

The spelling of 147919909 in words is "one hundred forty-seven million, nine hundred nineteen thousand, nine hundred nine".