451404001 has 2 divisors, whose sum is σ = 451404002. Its totient is φ = 451404000.

The previous prime is 451403999. The next prime is 451404011. The reversal of 451404001 is 100404154.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 346853376 + 104550625 = 18624^2 + 10225^2 .

It is a cyclic number.

It is not a de Polignac number, because 451404001 - 2¹ = 451403999 is a prime.

Together with 451403999, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 451404001.

It is not a weakly prime, because it can be changed into another prime (451404011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225702000 + 225702001.

It is an arithmetic number, because the mean of its divisors is an integer number (225702001).

Almost surely, 2^451404001 is an apocalyptic number.

It is an amenable number.

451404001 is a deficient number, since it is larger than the sum of its proper divisors (1).

451404001 is an equidigital number, since it uses as much as digits as its factorization.

451404001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 451404001 is about 21246.2702844523. The cubic root of 451404001 is about 767.1055673631.

Adding to 451404001 its reverse (100404154), we get a palindrome (551808155).

It can be divided in two parts, 45140 and 4001, that added together give a triangular number (49141 = T₃₁₃).

The spelling of 451404001 in words is "four hundred fifty-one million, four hundred four thousand, one".