1420707961 has 2 divisors, whose sum is σ = 1420707962. Its totient is φ = 1420707960.

The previous prime is 1420707931. The next prime is 1420707991. The reversal of 1420707961 is 1697070241.

It is a balanced prime because it is at equal distance from previous prime (1420707931) and next prime (1420707991).

It can be written as a sum of positive squares in only one way, i.e., 1315440361 + 105267600 = 36269^2 + 10260^2 .

It is an emirp because it is prime and its reverse (1697070241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1420707961 - 2¹³ = 1420699769 is a prime.

It is a super-2 number, since 2×1420707961² = 4036822220897555042, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1420707961.

It is not a weakly prime, because it can be changed into another prime (1420707931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710353980 + 710353981.

It is an arithmetic number, because the mean of its divisors is an integer number (710353981).

Almost surely, 2^1420707961 is an apocalyptic number.

1420707961 is the 16857-th centered decagonal number.

It is an amenable number.

1420707961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420707961 is an equidigital number, since it uses as much as digits as its factorization.

1420707961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 1420707961 is about 37692.2798594089. The cubic root of 1420707961 is about 1124.1776274054.

The spelling of 1420707961 in words is "one billion, four hundred twenty million, seven hundred seven thousand, nine hundred sixty-one".