139874633 has 2 divisors, whose sum is σ = 139874634. Its totient is φ = 139874632.

The previous prime is 139874629. The next prime is 139874641. The reversal of 139874633 is 336478931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117245584 + 22629049 = 10828^2 + 4757^2 .

It is a cyclic number.

It is not a de Polignac number, because 139874633 - 2² = 139874629 is a prime.

It is not a weakly prime, because it can be changed into another prime (139874653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69937316 + 69937317.

It is an arithmetic number, because the mean of its divisors is an integer number (69937317).

Almost surely, 2^139874633 is an apocalyptic number.

It is an amenable number.

139874633 is a deficient number, since it is larger than the sum of its proper divisors (1).

139874633 is an equidigital number, since it uses as much as digits as its factorization.

139874633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 44.

The square root of 139874633 is about 11826.8606569960. The cubic root of 139874633 is about 519.0943716580.

The spelling of 139874633 in words is "one hundred thirty-nine million, eight hundred seventy-four thousand, six hundred thirty-three".