614881139 has 2 divisors, whose sum is σ = 614881140. Its totient is φ = 614881138.

The previous prime is 614881121. The next prime is 614881231. The reversal of 614881139 is 931188416.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 614881139 - 2¹⁶ = 614815603 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 614881096 and 614881105.

It is not a weakly prime, because it can be changed into another prime (614889139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307440569 + 307440570.

It is an arithmetic number, because the mean of its divisors is an integer number (307440570).

Almost surely, 2^614881139 is an apocalyptic number.

614881139 is a deficient number, since it is larger than the sum of its proper divisors (1).

614881139 is an equidigital number, since it uses as much as digits as its factorization.

614881139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 41.

The square root of 614881139 is about 24796.7969504128. The cubic root of 614881139 is about 850.3487099797.

The spelling of 614881139 in words is "six hundred fourteen million, eight hundred eighty-one thousand, one hundred thirty-nine".