405004151 has 2 divisors, whose sum is σ = 405004152. Its totient is φ = 405004150.

The previous prime is 405004139. The next prime is 405004153. The reversal of 405004151 is 151400504.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-405004151 is a prime.

Together with 405004153, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (405004153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202502075 + 202502076.

It is an arithmetic number, because the mean of its divisors is an integer number (202502076).

Almost surely, 2^405004151 is an apocalyptic number.

405004151 is a deficient number, since it is larger than the sum of its proper divisors (1).

405004151 is an equidigital number, since it uses as much as digits as its factorization.

405004151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 405004151 is about 20124.7149296580. The cubic root of 405004151 is about 739.8661500056.

Adding to 405004151 its reverse (151400504), we get a palindrome (556404655).

The spelling of 405004151 in words is "four hundred five million, four thousand, one hundred fifty-one".