1143419657 has 4 divisors (see below), whose sum is σ = 1148456976. Its totient is φ = 1138382340.

The previous prime is 1143419653. The next prime is 1143419681. The reversal of 1143419657 is 7569143411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1143419657 - 2² = 1143419653 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1143419653) 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, 2518319 + ... + 2518772.

It is an arithmetic number, because the mean of its divisors is an integer number (287114244).

Almost surely, 2^1143419657 is an apocalyptic number.

It is an amenable number.

1143419657 is a deficient number, since it is larger than the sum of its proper divisors (5037319).

1143419657 is an equidigital number, since it uses as much as digits as its factorization.

1143419657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5037318.

The product of its digits is 90720, while the sum is 41.

The square root of 1143419657 is about 33814.4888620248. The cubic root of 1143419657 is about 1045.6874232820.

The spelling of 1143419657 in words is "one billion, one hundred forty-three million, four hundred nineteen thousand, six hundred fifty-seven".