30471129 has 24 divisors (see below), whose sum is σ = 47770632. Its totient is φ = 18604800.

The previous prime is 30471107. The next prime is 30471151. The reversal of 30471129 is 92117403.

It is an interprime number because it is at equal distance from previous prime (30471107) and next prime (30471151).

It can be written as a sum of positive squares in 4 ways, for example, as 729 + 30470400 = 27^2 + 5520^2 .

It is not a de Polignac number, because 30471129 - 2⁸ = 30470873 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30471179) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15079 + ... + 16979.

It is an arithmetic number, because the mean of its divisors is an integer number (1990443).

Almost surely, 2^30471129 is an apocalyptic number.

30471129 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

30471129 is a deficient number, since it is larger than the sum of its proper divisors (17299503).

30471129 is a wasteful number, since it uses less digits than its factorization.

30471129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2057 (or 2054 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 30471129 is about 5520.0660322137. The cubic root of 30471129 is about 312.3413731470.

The spelling of 30471129 in words is "thirty million, four hundred seventy-one thousand, one hundred twenty-nine".