30272151 has 64 divisors (see below), whose sum is σ = 53043200. Its totient is φ = 15240960.

The previous prime is 30272131. The next prime is 30272153. The reversal of 30272151 is 15127203.

It is a de Polignac number, because none of the positive numbers 2^k-30272151 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30272153) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 414651 + ... + 414723.

It is an arithmetic number, because the mean of its divisors is an integer number (828800).

Almost surely, 2^30272151 is an apocalyptic number.

30272151 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

30272151 is a deficient number, since it is larger than the sum of its proper divisors (22771049).

30272151 is a wasteful number, since it uses less digits than its factorization.

30272151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 30272151 is about 5502.0133587624. The cubic root of 30272151 is about 311.6600196218.

Adding to 30272151 its reverse (15127203), we get a palindrome (45399354).

The spelling of 30272151 in words is "thirty million, two hundred seventy-two thousand, one hundred fifty-one".