147669 has 4 divisors (see below), whose sum is σ = 196896. Its totient is φ = 98444.

The previous prime is 147661. The next prime is 147671. The reversal of 147669 is 966741.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 966741 = 3 ⋅322247.

It is a cyclic number.

It is not a de Polignac number, because 147669 - 2³ = 147661 is a prime.

It is a super-2 number, since 2×147669² = 43612267122, which contains 22 as substring.

It is a D-number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 147669.

It is not an unprimeable number, because it can be changed into a prime (147661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24609 + ... + 24614.

It is an arithmetic number, because the mean of its divisors is an integer number (49224).

2¹⁴⁷⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

147669 is a deficient number, since it is larger than the sum of its proper divisors (49227).

147669 is an equidigital number, since it uses as much as digits as its factorization.

147669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49226.

The product of its digits is 9072, while the sum is 33.

The square root of 147669 is about 384.2772436666. The cubic root of 147669 is about 52.8562617683.

The spelling of 147669 in words is "one hundred forty-seven thousand, six hundred sixty-nine".