1420667461 has 2 divisors, whose sum is σ = 1420667462. Its totient is φ = 1420667460.

The previous prime is 1420667419. The next prime is 1420667533. The reversal of 1420667461 is 1647660241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1414512100 + 6155361 = 37610^2 + 2481^2 .

It is a cyclic number.

It is not a de Polignac number, because 1420667461 - 2⁷ = 1420667333 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1420667461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1420667401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710333730 + 710333731.

It is an arithmetic number, because the mean of its divisors is an integer number (710333731).

Almost surely, 2^1420667461 is an apocalyptic number.

It is an amenable number.

1420667461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420667461 is an equidigital number, since it uses as much as digits as its factorization.

1420667461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 1420667461 is about 37691.7426102853. The cubic root of 1420667461 is about 1124.1669450255.

The spelling of 1420667461 in words is "one billion, four hundred twenty million, six hundred sixty-seven thousand, four hundred sixty-one".