143969472 has 42 divisors (see below), whose sum is σ = 412664148. Its totient is φ = 47989632.

The previous prime is 143969467. The next prime is 143969473. The reversal of 143969472 is 274969341.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (143969473) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 124398 + ... + 125549.

Almost surely, 2^143969472 is an apocalyptic number.

143969472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

143969472 is an abundant number, since it is smaller than the sum of its proper divisors (268694676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143969472 is a wasteful number, since it uses less digits than its factorization.

143969472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249965 (or 249952 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 143969472 is about 11998.7279325769. The cubic root of 143969472 is about 524.1112364123. Note that the first 3 decimals are identical.

It can be divided in two parts, 143969 and 472, that added together give a palindrome (144441).

The spelling of 143969472 in words is "one hundred forty-three million, nine hundred sixty-nine thousand, four hundred seventy-two".