27144045 has 32 divisors (see below), whose sum is σ = 48992640. Its totient is φ = 14256000.

The previous prime is 27144041. The next prime is 27144049. The reversal of 27144045 is 54044172.

It is an interprime number because it is at equal distance from previous prime (27144041) and next prime (27144049).

It is not a de Polignac number, because 27144045 - 2² = 27144041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27144041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7545 + ... + 10545.

It is an arithmetic number, because the mean of its divisors is an integer number (1531020).

Almost surely, 2^27144045 is an apocalyptic number.

It is an amenable number.

27144045 is a deficient number, since it is larger than the sum of its proper divisors (21848595).

27144045 is a wasteful number, since it uses less digits than its factorization.

27144045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3082 (or 3076 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 27144045 is about 5209.9947216864. The cubic root of 27144045 is about 300.5325540612.

The spelling of 27144045 in words is "twenty-seven million, one hundred forty-four thousand, forty-five".