30955129 has 2 divisors, whose sum is σ = 30955130. Its totient is φ = 30955128.

The previous prime is 30955109. The next prime is 30955153. The reversal of 30955129 is 92155903.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20457529 + 10497600 = 4523^2 + 3240^2 .

It is a cyclic number.

It is not a de Polignac number, because 30955129 - 2⁵ = 30955097 is a prime.

It is a super-2 number, since 2×30955129² = 1916440022813282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30955094 and 30955103.

It is not a weakly prime, because it can be changed into another prime (30955109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15477564 + 15477565.

It is an arithmetic number, because the mean of its divisors is an integer number (15477565).

Almost surely, 2^30955129 is an apocalyptic number.

It is an amenable number.

30955129 is a deficient number, since it is larger than the sum of its proper divisors (1).

30955129 is an equidigital number, since it uses as much as digits as its factorization.

30955129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12150, while the sum is 34.

The square root of 30955129 is about 5563.7333688810. The cubic root of 30955129 is about 313.9864255021.

The spelling of 30955129 in words is "thirty million, nine hundred fifty-five thousand, one hundred twenty-nine".