147869409 has 8 divisors (see below), whose sum is σ = 197497440. Its totient is φ = 98410496.

The previous prime is 147869401. The next prime is 147869431. The reversal of 147869409 is 904968741.

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 147869409 - 2³ = 147869401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (147869401) 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, 40224 + ... + 43745.

It is an arithmetic number, because the mean of its divisors is an integer number (24687180).

Almost surely, 2^147869409 is an apocalyptic number.

It is an amenable number.

147869409 is a deficient number, since it is larger than the sum of its proper divisors (49628031).

147869409 is an equidigital number, since it uses as much as digits as its factorization.

147869409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84559.

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 147869409 is about 12160.1566190572. The cubic root of 147869409 is about 528.8016225328.

The spelling of 147869409 in words is "one hundred forty-seven million, eight hundred sixty-nine thousand, four hundred nine".