147969 has 12 divisors (see below), whose sum is σ = 219492. Its totient is φ = 96000.

The previous prime is 147949. The next prime is 147977. The reversal of 147969 is 969741.

147969 is nontrivially palindromic in base 6.

It can be written as a sum of positive squares in 2 ways, for example, as 82944 + 65025 = 288^2 + 255^2 .

It is not a de Polignac number, because 147969 - 2⁵ = 147937 is a prime.

It is a super-2 number, since 2×147969² = 43789649922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (147919) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 169 + ... + 569.

It is an arithmetic number, because the mean of its divisors is an integer number (18291).

It is a Proth number, since it is equal to 289 ⋅ 2⁹ + 1 and 289 < 2⁹.

2¹⁴⁷⁹⁶⁹ is an apocalyptic number.

It is an amenable number.

147969 is a deficient number, since it is larger than the sum of its proper divisors (71523).

147969 is a wasteful number, since it uses less digits than its factorization.

147969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448 (or 445 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 147969 is about 384.6673887919. The cubic root of 147969 is about 52.8920312991.

The spelling of 147969 in words is "one hundred forty-seven thousand, nine hundred sixty-nine".