28953151 has 4 divisors (see below), whose sum is σ = 29018952. Its totient is φ = 28887352.

The previous prime is 28953149. The next prime is 28953173. The reversal of 28953151 is 15135982.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15135982 = 2 ⋅7567991.

It is a cyclic number.

It is not a de Polignac number, because 28953151 - 2¹ = 28953149 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 (28953181) 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, 32236 + ... + 33121.

It is an arithmetic number, because the mean of its divisors is an integer number (7254738).

Almost surely, 2^28953151 is an apocalyptic number.

28953151 is a deficient number, since it is larger than the sum of its proper divisors (65801).

28953151 is an equidigital number, since it uses as much as digits as its factorization.

28953151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65800.

The product of its digits is 10800, while the sum is 34.

The square root of 28953151 is about 5380.8132284999. The cubic root of 28953151 is about 307.0661509033.

The spelling of 28953151 in words is "twenty-eight million, nine hundred fifty-three thousand, one hundred fifty-one".