143672949 has 36 divisors (see below), whose sum is σ = 243830496. Its totient is φ = 81276048.

The previous prime is 143672923. The next prime is 143672951. The reversal of 143672949 is 949276341.

It is a happy number.

It is not a de Polignac number, because 143672949 - 2¹⁶ = 143607413 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143672999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 43842 + ... + 47004.

Almost surely, 2^143672949 is an apocalyptic number.

It is an amenable number.

143672949 is a deficient number, since it is larger than the sum of its proper divisors (100157547).

143672949 is a wasteful number, since it uses less digits than its factorization.

143672949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3286 (or 3276 counting only the distinct ones).

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

The square root of 143672949 is about 11986.3651287619. The cubic root of 143672949 is about 523.7511650436.

The spelling of 143672949 in words is "one hundred forty-three million, six hundred seventy-two thousand, nine hundred forty-nine".