202001253409 has 8 divisors (see below), whose sum is σ = 202813971200. Its totient is φ = 201189031200.

The previous prime is 202001253331. The next prime is 202001253413. The reversal of 202001253409 is 904352100202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202001253409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202001253109) 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, 704044 + ... + 948514.

It is an arithmetic number, because the mean of its divisors is an integer number (25351746400).

Almost surely, 2^202001253409 is an apocalyptic number.

It is an amenable number.

202001253409 is a deficient number, since it is larger than the sum of its proper divisors (812717791).

202001253409 is a wasteful number, since it uses less digits than its factorization.

202001253409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247791.

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 202001253409 in words is "two hundred two billion, one million, two hundred fifty-three thousand, four hundred nine".