28730151 has 12 divisors (see below), whose sum is σ = 43303728. Its totient is φ = 18320544.

The previous prime is 28730131. The next prime is 28730161. The reversal of 28730151 is 15103782.

It is not a de Polignac number, because 28730151 - 2⁹ = 28729639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28730131) 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, 69190 + ... + 69603.

It is an arithmetic number, because the mean of its divisors is an integer number (3608644).

Almost surely, 2^28730151 is an apocalyptic number.

28730151 is a deficient number, since it is larger than the sum of its proper divisors (14573577).

28730151 is a wasteful number, since it uses less digits than its factorization.

28730151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138822 (or 138819 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 28730151 is about 5360.0513990073. The cubic root of 28730151 is about 306.2757670392.

The spelling of 28730151 in words is "twenty-eight million, seven hundred thirty thousand, one hundred fifty-one".