235955009 has 4 divisors (see below), whose sum is σ = 238160304. Its totient is φ = 233749716.

The previous prime is 235955003. The next prime is 235955021. The reversal of 235955009 is 900559532.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 235955009 - 2²⁰ = 234906433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (235955003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1102487 + ... + 1102700.

It is an arithmetic number, because the mean of its divisors is an integer number (59540076).

Almost surely, 2^235955009 is an apocalyptic number.

It is an amenable number.

235955009 is a deficient number, since it is larger than the sum of its proper divisors (2205295).

235955009 is a wasteful number, since it uses less digits than its factorization.

235955009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2205294.

The product of its (nonzero) digits is 60750, while the sum is 38.

The square root of 235955009 is about 15360.8270936171. The cubic root of 235955009 is about 617.9353878960.

The spelling of 235955009 in words is "two hundred thirty-five million, nine hundred fifty-five thousand, nine".