1401430169 has 2 divisors, whose sum is σ = 1401430170. Its totient is φ = 1401430168.

The previous prime is 1401430123. The next prime is 1401430193. The reversal of 1401430169 is 9610341041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 772172944 + 629257225 = 27788^2 + 25085^2 .

It is a cyclic number.

It is not a de Polignac number, because 1401430169 - 2¹⁶ = 1401364633 is a prime.

It is a super-2 number, since 2×1401430169² = 3928013037166737122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1401430369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700715084 + 700715085.

It is an arithmetic number, because the mean of its divisors is an integer number (700715085).

Almost surely, 2^1401430169 is an apocalyptic number.

It is an amenable number.

1401430169 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401430169 is an equidigital number, since it uses as much as digits as its factorization.

1401430169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 1401430169 is about 37435.6804265663. The cubic root of 1401430169 is about 1119.0697444046.

The spelling of 1401430169 in words is "one billion, four hundred one million, four hundred thirty thousand, one hundred sixty-nine".