30156122 has 8 divisors (see below), whose sum is σ = 45269172. Its totient is φ = 15066400.

The previous prime is 30156103. The next prime is 30156127. The reversal of 30156122 is 22165103.

It can be written as a sum of positive squares in 2 ways, for example, as 30151081 + 5041 = 5491^2 + 71^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 30156094 and 30156103.

It is not an unprimeable number, because it can be changed into a prime (30156127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2129 + ... + 8052.

Almost surely, 2^30156122 is an apocalyptic number.

30156122 is a deficient number, since it is larger than the sum of its proper divisors (15113050).

30156122 is a wasteful number, since it uses less digits than its factorization.

30156122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11664.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 30156122 is about 5491.4590046726. The cubic root of 30156122 is about 311.2613264481.

The spelling of 30156122 in words is "thirty million, one hundred fifty-six thousand, one hundred twenty-two".