401034251 has 2 divisors, whose sum is σ = 401034252. Its totient is φ = 401034250.

The previous prime is 401034239. The next prime is 401034253. The reversal of 401034251 is 152430104.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401034251 is a prime.

Together with 401034253, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (401034253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200517125 + 200517126.

It is an arithmetic number, because the mean of its divisors is an integer number (200517126).

Almost surely, 2^401034251 is an apocalyptic number.

401034251 is a deficient number, since it is larger than the sum of its proper divisors (1).

401034251 is an equidigital number, since it uses as much as digits as its factorization.

401034251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 401034251 is about 20025.8395828989. The cubic root of 401034251 is about 737.4407887347.

Adding to 401034251 its reverse (152430104), we get a palindrome (553464355).

The spelling of 401034251 in words is "four hundred one million, thirty-four thousand, two hundred fifty-one".