28915154 has 12 divisors (see below), whose sum is σ = 43991226. Its totient is φ = 14254272.

The previous prime is 28915153. The next prime is 28915171. The reversal of 28915154 is 45151982.

It can be written as a sum of positive squares in 3 ways, for example, as 28912129 + 3025 = 5377^2 + 55^2 .

It is a super-2 number, since 2×28915154² = 1672172261687432, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (28915153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9302 + ... + 12014.

Almost surely, 2^28915154 is an apocalyptic number.

28915154 is a deficient number, since it is larger than the sum of its proper divisors (15076072).

28915154 is an equidigital number, since it uses as much as digits as its factorization.

28915154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2861 (or 2788 counting only the distinct ones).

The product of its digits is 14400, while the sum is 35.

The square root of 28915154 is about 5377.2812833252. The cubic root of 28915154 is about 306.9317648361.

The spelling of 28915154 in words is "twenty-eight million, nine hundred fifteen thousand, one hundred fifty-four".