30377129 has 2 divisors, whose sum is σ = 30377130. Its totient is φ = 30377128.

The previous prime is 30377119. The next prime is 30377131. The reversal of 30377129 is 92177303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15784729 + 14592400 = 3973^2 + 3820^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30377129 is a prime.

Together with 30377131, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 30377095 and 30377104.

It is not a weakly prime, because it can be changed into another prime (30377119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15188564 + 15188565.

It is an arithmetic number, because the mean of its divisors is an integer number (15188565).

Almost surely, 2^30377129 is an apocalyptic number.

It is an amenable number.

30377129 is a deficient number, since it is larger than the sum of its proper divisors (1).

30377129 is an equidigital number, since it uses as much as digits as its factorization.

30377129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7938, while the sum is 32.

The square root of 30377129 is about 5511.5450646801. The cubic root of 30377129 is about 312.0198629969.

The spelling of 30377129 in words is "thirty million, three hundred seventy-seven thousand, one hundred twenty-nine".