27150000 has 120 divisors (see below), whose sum is σ = 88150608. Its totient is φ = 7200000.

The previous prime is 27149981. The next prime is 27150001. The reversal of 27150000 is 5172.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (27150001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 149910 + ... + 150090.

Almost surely, 2^27150000 is an apocalyptic number.

27150000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27150000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44075304).

27150000 is an abundant number, since it is smaller than the sum of its proper divisors (61000608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27150000 is an equidigital number, since it uses as much as digits as its factorization.

27150000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 15.

The square root of 27150000 is about 5210.5661880452. The cubic root of 27150000 is about 300.5545299126.

Adding to 27150000 its reverse (5172), we get a palindrome (27155172).

The spelling of 27150000 in words is "twenty-seven million, one hundred fifty thousand".