1143579634 has 8 divisors (see below), whose sum is σ = 1715580288. Its totient is φ = 571719540.

The previous prime is 1143579631. The next prime is 1143579641. The reversal of 1143579634 is 4369753411.

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

It is not an unprimeable number, because it can be changed into a prime (1143579631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11662 + ... + 49225.

It is an arithmetic number, because the mean of its divisors is an integer number (214447536).

Almost surely, 2^1143579634 is an apocalyptic number.

1143579634 is a deficient number, since it is larger than the sum of its proper divisors (572000654).

1143579634 is an equidigital number, since it uses as much as digits as its factorization.

1143579634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70280.

The product of its digits is 272160, while the sum is 43.

The square root of 1143579634 is about 33816.8542889489. The cubic root of 1143579634 is about 1045.7361887359.

The spelling of 1143579634 in words is "one billion, one hundred forty-three million, five hundred seventy-nine thousand, six hundred thirty-four".