1418715421 has 2 divisors, whose sum is σ = 1418715422. Its totient is φ = 1418715420.

The previous prime is 1418715367. The next prime is 1418715449. The reversal of 1418715421 is 1245178141.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1413008100 + 5707321 = 37590^2 + 2389^2 .

It is a cyclic number.

It is not a de Polignac number, because 1418715421 - 2⁹ = 1418714909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1418515421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 709357710 + 709357711.

It is an arithmetic number, because the mean of its divisors is an integer number (709357711).

Almost surely, 2^1418715421 is an apocalyptic number.

It is an amenable number.

1418715421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1418715421 is an equidigital number, since it uses as much as digits as its factorization.

1418715421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8960, while the sum is 34.

The square root of 1418715421 is about 37665.8389127336. The cubic root of 1418715421 is about 1123.6518292466.

The spelling of 1418715421 in words is "one billion, four hundred eighteen million, seven hundred fifteen thousand, four hundred twenty-one".