405241547 has 2 divisors, whose sum is σ = 405241548. Its totient is φ = 405241546.

The previous prime is 405241541. The next prime is 405241553. The reversal of 405241547 is 745142504.

It is a balanced prime because it is at equal distance from previous prime (405241541) and next prime (405241553).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-405241547 is a prime.

It is a super-2 number, since 2×405241547² = 328441422829906418, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (405241541) 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, 202620773 + 202620774.

It is an arithmetic number, because the mean of its divisors is an integer number (202620774).

Almost surely, 2^405241547 is an apocalyptic number.

405241547 is a deficient number, since it is larger than the sum of its proper divisors (1).

405241547 is an equidigital number, since it uses as much as digits as its factorization.

405241547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22400, while the sum is 32.

The square root of 405241547 is about 20130.6121864190. The cubic root of 405241547 is about 740.0106810000.

The spelling of 405241547 in words is "four hundred five million, two hundred forty-one thousand, five hundred forty-seven".