30853136 has 10 divisors (see below), whose sum is σ = 59777982. Its totient is φ = 15426560.

The previous prime is 30853117. The next prime is 30853139. The reversal of 30853136 is 63135803.

It can be written as a sum of positive squares in only one way, i.e., 25563136 + 5290000 = 5056^2 + 2300^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30853099 and 30853108.

It is not an unprimeable number, because it can be changed into a prime (30853139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 964145 + ... + 964176.

Almost surely, 2^30853136 is an apocalyptic number.

It is an amenable number.

30853136 is a deficient number, since it is larger than the sum of its proper divisors (28924846).

30853136 is a wasteful number, since it uses less digits than its factorization.

30853136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1928329 (or 1928323 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 30853136 is about 5554.5599285632. The cubic root of 30853136 is about 313.6411983394.

Adding to 30853136 its reverse (63135803), we get a palindrome (93988939).

The spelling of 30853136 in words is "thirty million, eight hundred fifty-three thousand, one hundred thirty-six".