1143619 has 2 divisors, whose sum is σ = 1143620. Its totient is φ = 1143618.

The previous prime is 1143601. The next prime is 1143643. The reversal of 1143619 is 9163411.

It is a weak prime.

It is an emirp because it is prime and its reverse (9163411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1143619 - 2⁵ = 1143587 is a prime.

It is a super-2 number, since 2×1143619² = 2615728834322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1143593 and 1143602.

It is not a weakly prime, because it can be changed into another prime (1143679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571809 + 571810.

It is an arithmetic number, because the mean of its divisors is an integer number (571810).

2^1143619 is an apocalyptic number.

1143619 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143619 is an equidigital number, since it uses as much as digits as its factorization.

1143619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 25.

The square root of 1143619 is about 1069.4012343363. The cubic root of 1143619 is about 104.5748187894.

The spelling of 1143619 in words is "one million, one hundred forty-three thousand, six hundred nineteen".