30291129 has 12 divisors (see below), whose sum is σ = 47731632. Its totient is φ = 18358200.

The previous prime is 30291113. The next prime is 30291137. The reversal of 30291129 is 92119203.

It is not a de Polignac number, because 30291129 - 2⁴ = 30291113 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30291199) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152887 + ... + 153084.

It is an arithmetic number, because the mean of its divisors is an integer number (3977636).

Almost surely, 2^30291129 is an apocalyptic number.

It is an amenable number.

30291129 is a deficient number, since it is larger than the sum of its proper divisors (17440503).

30291129 is a wasteful number, since it uses less digits than its factorization.

30291129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305988 (or 305985 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 30291129 is about 5503.7377299432. The cubic root of 30291129 is about 311.7251339055.

The spelling of 30291129 in words is "thirty million, two hundred ninety-one thousand, one hundred twenty-nine".