400151504251 has 2 divisors, whose sum is σ = 400151504252. Its totient is φ = 400151504250.

The previous prime is 400151504231. The next prime is 400151504261. The reversal of 400151504251 is 152405151004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 400151504251 - 2⁵ = 400151504219 is a prime.

It is not a weakly prime, because it can be changed into another prime (400151504231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200075752125 + 200075752126.

It is an arithmetic number, because the mean of its divisors is an integer number (200075752126).

Almost surely, 2^400151504251 is an apocalyptic number.

400151504251 is a deficient number, since it is larger than the sum of its proper divisors (1).

400151504251 is an equidigital number, since it uses as much as digits as its factorization.

400151504251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4000, while the sum is 28.

Adding to 400151504251 its reverse (152405151004), we get a palindrome (552556655255).

The spelling of 400151504251 in words is "four hundred billion, one hundred fifty-one million, five hundred four thousand, two hundred fifty-one".