30132819 has 12 divisors (see below), whose sum is σ = 44015400. Its totient is φ = 19862304.

The previous prime is 30132811. The next prime is 30132821. The reversal of 30132819 is 91823103.

It is not a de Polignac number, because 30132819 - 2³ = 30132811 is a prime.

It is a super-2 number, since 2×30132819² = 1815973561773522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30132792 and 30132801.

It is not an unprimeable number, because it can be changed into a prime (30132811) 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, 18009 + ... + 19610.

It is an arithmetic number, because the mean of its divisors is an integer number (3667950).

Almost surely, 2^30132819 is an apocalyptic number.

30132819 is a deficient number, since it is larger than the sum of its proper divisors (13882581).

30132819 is a wasteful number, since it uses less digits than its factorization.

30132819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37714 (or 37711 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 30132819 is about 5489.3368451936. The cubic root of 30132819 is about 311.1811305505.

It can be divided in two parts, 3013 and 2819, that added together give a cube (5832 = 18³).

The spelling of 30132819 in words is "thirty million, one hundred thirty-two thousand, eight hundred nineteen".