427400137 has 2 divisors, whose sum is σ = 427400138. Its totient is φ = 427400136.

The previous prime is 427400107. The next prime is 427400143. The reversal of 427400137 is 731004724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 338964921 + 88435216 = 18411^2 + 9404^2 .

It is a cyclic number.

It is not a de Polignac number, because 427400137 - 2¹¹ = 427398089 is a prime.

It is not a weakly prime, because it can be changed into another prime (427400107) 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 as a sum of consecutive naturals, namely, 213700068 + 213700069.

It is an arithmetic number, because the mean of its divisors is an integer number (213700069).

Almost surely, 2^427400137 is an apocalyptic number.

It is an amenable number.

427400137 is a deficient number, since it is larger than the sum of its proper divisors (1).

427400137 is an equidigital number, since it uses as much as digits as its factorization.

427400137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 427400137 is about 20673.6580459289. The cubic root of 427400137 is about 753.2599649008.

The spelling of 427400137 in words is "four hundred twenty-seven million, four hundred thousand, one hundred thirty-seven".