27200145 has 48 divisors (see below), whose sum is σ = 52859520. Its totient is φ = 11886336.

The previous prime is 27200141. The next prime is 27200161. The reversal of 27200145 is 54100272.

It is not a de Polignac number, because 27200145 - 2² = 27200141 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (27200141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16101 + ... + 17709.

It is an arithmetic number, because the mean of its divisors is an integer number (1101240).

Almost surely, 2^27200145 is an apocalyptic number.

It is an amenable number.

27200145 is a deficient number, since it is larger than the sum of its proper divisors (25659375).

27200145 is a wasteful number, since it uses less digits than its factorization.

27200145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1654 (or 1647 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 27200145 is about 5215.3758253840. The cubic root of 27200145 is about 300.7394536413.

27200145 divided by its sum of digits (21) gives a triangular number (1295245 = T₁₆₀₉).

The spelling of 27200145 in words is "twenty-seven million, two hundred thousand, one hundred forty-five".