1420161139 has 2 divisors, whose sum is σ = 1420161140. Its totient is φ = 1420161138.

The previous prime is 1420161103. The next prime is 1420161173. The reversal of 1420161139 is 9311610241.

It is a strong prime.

It is an emirp because it is prime and its reverse (9311610241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1420161139 - 2²⁵ = 1386606707 is a prime.

It is not a weakly prime, because it can be changed into another prime (1420161439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710080569 + 710080570.

It is an arithmetic number, because the mean of its divisors is an integer number (710080570).

Almost surely, 2^1420161139 is an apocalyptic number.

1420161139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420161139 is an equidigital number, since it uses as much as digits as its factorization.

1420161139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 1420161139 is about 37685.0253947108. The cubic root of 1420161139 is about 1124.0333791479.

The spelling of 1420161139 in words is "one billion, four hundred twenty million, one hundred sixty-one thousand, one hundred thirty-nine".