1420013977 has 2 divisors, whose sum is σ = 1420013978. Its totient is φ = 1420013976.

The previous prime is 1420013941. The next prime is 1420013989. The reversal of 1420013977 is 7793100241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 831514896 + 588499081 = 28836^2 + 24259^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1420013977 is a prime.

It is not a weakly prime, because it can be changed into another prime (1420013377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710006988 + 710006989.

It is an arithmetic number, because the mean of its divisors is an integer number (710006989).

Almost surely, 2^1420013977 is an apocalyptic number.

It is an amenable number.

1420013977 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420013977 is an equidigital number, since it uses as much as digits as its factorization.

1420013977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 1420013977 is about 37683.0728179112. The cubic root of 1420013977 is about 1123.9945524003.

The spelling of 1420013977 in words is "one billion, four hundred twenty million, thirteen thousand, nine hundred seventy-seven".