1421140277 has 2 divisors, whose sum is σ = 1421140278. Its totient is φ = 1421140276.

The previous prime is 1421140271. The next prime is 1421140349. The reversal of 1421140277 is 7720411241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1381311556 + 39828721 = 37166^2 + 6311^2 .

It is an emirp because it is prime and its reverse (7720411241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1421140277 - 2⁶ = 1421140213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1421140271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710570138 + 710570139.

It is an arithmetic number, because the mean of its divisors is an integer number (710570139).

Almost surely, 2^1421140277 is an apocalyptic number.

It is an amenable number.

1421140277 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421140277 is an equidigital number, since it uses as much as digits as its factorization.

1421140277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 1421140277 is about 37698.0142315215. The cubic root of 1421140277 is about 1124.2916434924.

The spelling of 1421140277 in words is "one billion, four hundred twenty-one million, one hundred forty thousand, two hundred seventy-seven".