270651 has 4 divisors (see below), whose sum is σ = 360872. Its totient is φ = 180432.

The previous prime is 270631. The next prime is 270653. The reversal of 270651 is 156072.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 270651 - 2⁵ = 270619 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (270653) 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, 45106 + ... + 45111.

It is an arithmetic number, because the mean of its divisors is an integer number (90218).

2²⁷⁰⁶⁵¹ is an apocalyptic number.

270651 is a deficient number, since it is larger than the sum of its proper divisors (90221).

270651 is an equidigital number, since it uses as much as digits as its factorization.

270651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90220.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 270651 is about 520.2412901722. The cubic root of 270651 is about 64.6849448219.

The spelling of 270651 in words is "two hundred seventy thousand, six hundred fifty-one".