139984481027 has 2 divisors, whose sum is σ = 139984481028. Its totient is φ = 139984481026.

The previous prime is 139984481003. The next prime is 139984481033. The reversal of 139984481027 is 720184489931.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 139984481027 - 2¹⁶ = 139984415491 is a prime.

It is not a weakly prime, because it can be changed into another prime (139984481227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69992240513 + 69992240514.

It is an arithmetic number, because the mean of its divisors is an integer number (69992240514).

Almost surely, 2^139984481027 is an apocalyptic number.

139984481027 is a deficient number, since it is larger than the sum of its proper divisors (1).

139984481027 is an equidigital number, since it uses as much as digits as its factorization.

139984481027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3483648, while the sum is 56.

The spelling of 139984481027 in words is "one hundred thirty-nine billion, nine hundred eighty-four million, four hundred eighty-one thousand, twenty-seven".