1420100839 has 2 divisors, whose sum is σ = 1420100840. Its totient is φ = 1420100838.

The previous prime is 1420100837. The next prime is 1420100873. The reversal of 1420100839 is 9380010241.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1420100839 - 2¹ = 1420100837 is a prime.

Together with 1420100837, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1420100833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710050419 + 710050420.

It is an arithmetic number, because the mean of its divisors is an integer number (710050420).

Almost surely, 2^1420100839 is an apocalyptic number.

1420100839 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420100839 is an equidigital number, since it uses as much as digits as its factorization.

1420100839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 1420100839 is about 37684.2253336857. The cubic root of 1420100839 is about 1124.0174701147.

The spelling of 1420100839 in words is "one billion, four hundred twenty million, one hundred thousand, eight hundred thirty-nine".