1149142619 has 2 divisors, whose sum is σ = 1149142620. Its totient is φ = 1149142618.

The previous prime is 1149142601. The next prime is 1149142649. The reversal of 1149142619 is 9162419411.

It is a weak prime.

It is an emirp because it is prime and its reverse (9162419411) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1149142619 is a prime.

It is a super-2 number, since 2×1149142619² = 2641057517604358322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1149142649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 574571309 + 574571310.

It is an arithmetic number, because the mean of its divisors is an integer number (574571310).

Almost surely, 2^1149142619 is an apocalyptic number.

1149142619 is a deficient number, since it is larger than the sum of its proper divisors (1).

1149142619 is an equidigital number, since it uses as much as digits as its factorization.

1149142619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 38.

The square root of 1149142619 is about 33899.0061653730. The cubic root of 1149142619 is about 1047.4291205793.

The spelling of 1149142619 in words is "one billion, one hundred forty-nine million, one hundred forty-two thousand, six hundred nineteen".