538187401 has 2 divisors, whose sum is σ = 538187402. Its totient is φ = 538187400.

The previous prime is 538187389. The next prime is 538187417. The reversal of 538187401 is 104781835.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 455395600 + 82791801 = 21340^2 + 9099^2 .

It is a cyclic number.

It is not a de Polignac number, because 538187401 - 2⁹ = 538186889 is a prime.

It is not a weakly prime, because it can be changed into another prime (538187471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269093700 + 269093701.

It is an arithmetic number, because the mean of its divisors is an integer number (269093701).

Almost surely, 2^538187401 is an apocalyptic number.

It is an amenable number.

538187401 is a deficient number, since it is larger than the sum of its proper divisors (1).

538187401 is an equidigital number, since it uses as much as digits as its factorization.

538187401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 538187401 is about 23198.8663731657. The cubic root of 538187401 is about 813.4131245997.

The spelling of 538187401 in words is "five hundred thirty-eight million, one hundred eighty-seven thousand, four hundred one".