147642727 has 4 divisors (see below), whose sum is σ = 154062000. Its totient is φ = 141223456.

The previous prime is 147642701. The next prime is 147642731. The reversal of 147642727 is 727246741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 727246741 = 13 ⋅55942057.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147642727 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 147642727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147642767) 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, 3209602 + ... + 3209647.

It is an arithmetic number, because the mean of its divisors is an integer number (38515500).

Almost surely, 2^147642727 is an apocalyptic number.

147642727 is a deficient number, since it is larger than the sum of its proper divisors (6419273).

147642727 is an equidigital number, since it uses as much as digits as its factorization.

147642727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6419272.

The product of its digits is 131712, while the sum is 40.

The square root of 147642727 is about 12150.8323583201. The cubic root of 147642727 is about 528.5312688574.

The spelling of 147642727 in words is "one hundred forty-seven million, six hundred forty-two thousand, seven hundred twenty-seven".