1405467493 has 2 divisors, whose sum is σ = 1405467494. Its totient is φ = 1405467492.

The previous prime is 1405467457. The next prime is 1405467499. The reversal of 1405467493 is 3947645041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 947593089 + 457874404 = 30783^2 + 21398^2 .

It is an emirp because it is prime and its reverse (3947645041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1405467493 - 2⁹ = 1405466981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1405467499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702733746 + 702733747.

It is an arithmetic number, because the mean of its divisors is an integer number (702733747).

Almost surely, 2^1405467493 is an apocalyptic number.

It is an amenable number.

1405467493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1405467493 is an equidigital number, since it uses as much as digits as its factorization.

1405467493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 43.

The square root of 1405467493 is about 37489.5651215108. The cubic root of 1405467493 is about 1120.1433418260.

The spelling of 1405467493 in words is "one billion, four hundred five million, four hundred sixty-seven thousand, four hundred ninety-three".