1143625667 has 8 divisors (see below), whose sum is σ = 1168700736. Its totient is φ = 1118581632.

The previous prime is 1143625663. The next prime is 1143625687. The reversal of 1143625667 is 7665263411.

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 1143625667 - 2² = 1143625663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1143625663) 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, 76673 + ... + 90365.

It is an arithmetic number, because the mean of its divisors is an integer number (146087592).

Almost surely, 2^1143625667 is an apocalyptic number.

1143625667 is a deficient number, since it is larger than the sum of its proper divisors (25075069).

1143625667 is a wasteful number, since it uses less digits than its factorization.

1143625667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15517.

The product of its digits is 181440, while the sum is 41.

The square root of 1143625667 is about 33817.5349042475. The cubic root of 1143625667 is about 1045.7502200363.

The spelling of 1143625667 in words is "one billion, one hundred forty-three million, six hundred twenty-five thousand, six hundred sixty-seven".