27142045 has 16 divisors (see below), whose sum is σ = 37589760. Its totient is φ = 18428544.

The previous prime is 27142043. The next prime is 27142067. The reversal of 27142045 is 54024172.

It is a cyclic number.

It is not a de Polignac number, because 27142045 - 2¹ = 27142043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27142043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160 + ... + 7369.

It is an arithmetic number, because the mean of its divisors is an integer number (2349360).

Almost surely, 2^27142045 is an apocalyptic number.

It is an amenable number.

27142045 is a deficient number, since it is larger than the sum of its proper divisors (10447715).

27142045 is a wasteful number, since it uses less digits than its factorization.

27142045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7644.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 27142045 is about 5209.8027793766. The cubic root of 27142045 is about 300.5251727016.

The spelling of 27142045 in words is "twenty-seven million, one hundred forty-two thousand, forty-five".