405134479 has 2 divisors, whose sum is σ = 405134480. Its totient is φ = 405134478.

The previous prime is 405134453. The next prime is 405134557. The reversal of 405134479 is 974431504.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 405134479 - 2⁵ = 405134447 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (405134419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202567239 + 202567240.

It is an arithmetic number, because the mean of its divisors is an integer number (202567240).

Almost surely, 2^405134479 is an apocalyptic number.

405134479 is a deficient number, since it is larger than the sum of its proper divisors (1).

405134479 is an equidigital number, since it uses as much as digits as its factorization.

405134479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 405134479 is about 20127.9526778061. The cubic root of 405134479 is about 739.9455030478.

The spelling of 405134479 in words is "four hundred five million, one hundred thirty-four thousand, four hundred seventy-nine".