427538129 has 2 divisors, whose sum is σ = 427538130. Its totient is φ = 427538128.

The previous prime is 427538107. The next prime is 427538141. The reversal of 427538129 is 921835724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 263185729 + 164352400 = 16223^2 + 12820^2 .

It is a cyclic number.

It is not a de Polignac number, because 427538129 - 2¹⁶ = 427472593 is a prime.

It is not a weakly prime, because it can be changed into another prime (427538159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213769064 + 213769065.

It is an arithmetic number, because the mean of its divisors is an integer number (213769065).

Almost surely, 2^427538129 is an apocalyptic number.

It is an amenable number.

427538129 is a deficient number, since it is larger than the sum of its proper divisors (1).

427538129 is an equidigital number, since it uses as much as digits as its factorization.

427538129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 41.

The square root of 427538129 is about 20676.9951637079. The cubic root of 427538129 is about 753.3410229504.

The spelling of 427538129 in words is "four hundred twenty-seven million, five hundred thirty-eight thousand, one hundred twenty-nine".