201404123145 has 12 divisors (see below), whose sum is σ = 349100480196. Its totient is φ = 107415532320.

The previous prime is 201404123111. The next prime is 201404123147. The reversal of 201404123145 is 541321404102.

201404123145 is a `hidden beast` number, since 20 + 1 + 404 + 1 + 231 + 4 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 52941868281 + 148462254864 = 230091^2 + 385308^2 .

It is not a de Polignac number, because 201404123145 - 2²⁹ = 200867252233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201404123147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2237823546 + ... + 2237823635.

It is an arithmetic number, because the mean of its divisors is an integer number (29091706683).

Almost surely, 2^201404123145 is an apocalyptic number.

It is an amenable number.

201404123145 is a deficient number, since it is larger than the sum of its proper divisors (147696357051).

201404123145 is a wasteful number, since it uses less digits than its factorization.

201404123145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4475647192 (or 4475647189 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 201404123145 its reverse (541321404102), we get a palindrome (742725527247).

The spelling of 201404123145 in words is "two hundred one billion, four hundred four million, one hundred twenty-three thousand, one hundred forty-five".