30733139 has 2 divisors, whose sum is σ = 30733140. Its totient is φ = 30733138.

The previous prime is 30733103. The next prime is 30733169. The reversal of 30733139 is 93133703.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30733139 - 2⁸ = 30732883 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30733169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15366569 + 15366570.

It is an arithmetic number, because the mean of its divisors is an integer number (15366570).

Almost surely, 2^30733139 is an apocalyptic number.

30733139 is a deficient number, since it is larger than the sum of its proper divisors (1).

30733139 is an equidigital number, since it uses as much as digits as its factorization.

30733139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5103, while the sum is 29.

The square root of 30733139 is about 5543.7477395711. The cubic root of 30733139 is about 313.2340554900.

The spelling of 30733139 in words is "thirty million, seven hundred thirty-three thousand, one hundred thirty-nine".