1420655077 has 2 divisors, whose sum is σ = 1420655078. Its totient is φ = 1420655076.

The previous prime is 1420655039. The next prime is 1420655101. The reversal of 1420655077 is 7705560241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1419330276 + 1324801 = 37674^2 + 1151^2 .

It is an emirp because it is prime and its reverse (7705560241) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1420655077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1420655017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710327538 + 710327539.

It is an arithmetic number, because the mean of its divisors is an integer number (710327539).

Almost surely, 2^1420655077 is an apocalyptic number.

It is an amenable number.

1420655077 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420655077 is an equidigital number, since it uses as much as digits as its factorization.

1420655077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 1420655077 is about 37691.5783299134. The cubic root of 1420655077 is about 1124.1636785506.

The spelling of 1420655077 in words is "one billion, four hundred twenty million, six hundred fifty-five thousand, seventy-seven".