1143672949 has 8 divisors (see below), whose sum is σ = 1169562240. Its totient is φ = 1117848576.

The previous prime is 1143672889. The next prime is 1143672979. The reversal of 1143672949 is 9492763411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1143672949 - 2⁹ = 1143672437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1143672899 and 1143672908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143672979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20322 + ... + 51964.

It is an arithmetic number, because the mean of its divisors is an integer number (146195280).

Almost surely, 2^1143672949 is an apocalyptic number.

It is an amenable number.

1143672949 is a deficient number, since it is larger than the sum of its proper divisors (25889291).

1143672949 is an equidigital number, since it uses as much as digits as its factorization.

1143672949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32459.

The product of its digits is 326592, while the sum is 46.

The square root of 1143672949 is about 33818.2339722227. The cubic root of 1143672949 is about 1045.7646316519.

The spelling of 1143672949 in words is "one billion, one hundred forty-three million, six hundred seventy-two thousand, nine hundred forty-nine".