1421104057 has 2 divisors, whose sum is σ = 1421104058. Its totient is φ = 1421104056.

The previous prime is 1421103973. The next prime is 1421104063. The reversal of 1421104057 is 7504011241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1372257936 + 48846121 = 37044^2 + 6989^2 .

It is a cyclic number.

It is not a de Polignac number, because 1421104057 - 2¹¹ = 1421102009 is a prime.

It is not a weakly prime, because it can be changed into another prime (1421104357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710552028 + 710552029.

It is an arithmetic number, because the mean of its divisors is an integer number (710552029).

Almost surely, 2^1421104057 is an apocalyptic number.

It is an amenable number.

1421104057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421104057 is an equidigital number, since it uses as much as digits as its factorization.

1421104057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 1421104057 is about 37697.5338318039. The cubic root of 1421104057 is about 1124.2820919630.

Adding to 1421104057 its reverse (7504011241), we get a palindrome (8925115298).

The spelling of 1421104057 in words is "one billion, four hundred twenty-one million, one hundred four thousand, fifty-seven".