28235151 has 12 divisors (see below), whose sum is σ = 46610512. Its totient is φ = 16134336.

The previous prime is 28235149. The next prime is 28235171. The reversal of 28235151 is 15153282.

It is a happy number.

It is not a de Polignac number, because 28235151 - 2¹ = 28235149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28235111) 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, 224026 + ... + 224151.

Almost surely, 2^28235151 is an apocalyptic number.

28235151 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

28235151 is a deficient number, since it is larger than the sum of its proper divisors (18375361).

28235151 is a wasteful number, since it uses less digits than its factorization.

28235151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448190 (or 448187 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 28235151 is about 5313.6758463422. The cubic root of 28235151 is about 304.5065963126.

The spelling of 28235151 in words is "twenty-eight million, two hundred thirty-five thousand, one hundred fifty-one".