1406504643251 has 2 divisors, whose sum is σ = 1406504643252. Its totient is φ = 1406504643250.

The previous prime is 1406504643227. The next prime is 1406504643311. The reversal of 1406504643251 is 1523464056041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1406504643251 - 2¹⁴ = 1406504626867 is a prime.

It is a super-2 number, since 2×1406504643251² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1406504643199 and 1406504643208.

It is not a weakly prime, because it can be changed into another prime (1406204643251) 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, 703252321625 + 703252321626.

It is an arithmetic number, because the mean of its divisors is an integer number (703252321626).

Almost surely, 2^{1406504643251} is an apocalyptic number.

1406504643251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1406504643251 is an equidigital number, since it uses as much as digits as its factorization.

1406504643251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 345600, while the sum is 41.

Adding to 1406504643251 its reverse (1523464056041), we get a palindrome (2929968699292).

The spelling of 1406504643251 in words is "one trillion, four hundred six billion, five hundred four million, six hundred forty-three thousand, two hundred fifty-one".