201400243045 has 4 divisors (see below), whose sum is σ = 241680291660. Its totient is φ = 161120194432.

The previous prime is 201400243039. The next prime is 201400243103. The reversal of 201400243045 is 540342004102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44538303681 + 156861939364 = 211041^2 + 396058^2 .

It is a cyclic number.

It is not a de Polignac number, because 201400243045 - 2⁵ = 201400243013 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20140024300 + ... + 20140024309.

It is an arithmetic number, because the mean of its divisors is an integer number (60420072915).

Almost surely, 2^201400243045 is an apocalyptic number.

It is an amenable number.

201400243045 is a deficient number, since it is larger than the sum of its proper divisors (40280048615).

201400243045 is an equidigital number, since it uses as much as digits as its factorization.

201400243045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40280048614.

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 201400243045 its reverse (540342004102), we get a palindrome (741742247147).

The spelling of 201400243045 in words is "two hundred one billion, four hundred million, two hundred forty-three thousand, forty-five".