139630633 has 2 divisors, whose sum is σ = 139630634. Its totient is φ = 139630632.

The previous prime is 139630607. The next prime is 139630649. The reversal of 139630633 is 336036931.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120297024 + 19333609 = 10968^2 + 4397^2 .

It is a cyclic number.

It is not a de Polignac number, because 139630633 - 2⁹ = 139630121 is a prime.

It is not a weakly prime, because it can be changed into another prime (139630663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69815316 + 69815317.

It is an arithmetic number, because the mean of its divisors is an integer number (69815317).

Almost surely, 2^139630633 is an apocalyptic number.

It is an amenable number.

139630633 is a deficient number, since it is larger than the sum of its proper divisors (1).

139630633 is an equidigital number, since it uses as much as digits as its factorization.

139630633 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26244, while the sum is 34.

The square root of 139630633 is about 11816.5406528307. The cubic root of 139630633 is about 518.7923565743.

The spelling of 139630633 in words is "one hundred thirty-nine million, six hundred thirty thousand, six hundred thirty-three".