209236141205 has 16 divisors (see below), whose sum is σ = 309025686144. Its totient is φ = 132439579200.

The previous prime is 209236141201. The next prime is 209236141207. The reversal of 209236141205 is 502141632902.

It is not a de Polignac number, because 209236141205 - 2² = 209236141201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (209236141201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229929371 + ... + 229930280.

It is an arithmetic number, because the mean of its divisors is an integer number (19314105384).

Almost surely, 2^209236141205 is an apocalyptic number.

It is an amenable number.

209236141205 is a deficient number, since it is larger than the sum of its proper divisors (99789544939).

209236141205 is a wasteful number, since it uses less digits than its factorization.

209236141205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459859676.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 209236141205 in words is "two hundred nine billion, two hundred thirty-six million, one hundred forty-one thousand, two hundred five".