1142388619 has 16 divisors (see below), whose sum is σ = 1193227200. Its totient is φ = 1092375424.

The previous prime is 1142388589. The next prime is 1142388631. The reversal of 1142388619 is 9168832411.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1142388619 is a prime.

It is a super-2 number, since 2×1142388619² = 2610103513641454322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142388019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2050689 + ... + 2051245.

It is an arithmetic number, because the mean of its divisors is an integer number (74576700).

Almost surely, 2^1142388619 is an apocalyptic number.

1142388619 is a deficient number, since it is larger than the sum of its proper divisors (50838581).

1142388619 is a wasteful number, since it uses less digits than its factorization.

1142388619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142.

The product of its digits is 82944, while the sum is 43.

The square root of 1142388619 is about 33799.2399174893. The cubic root of 1142388619 is about 1045.3730249522.

The spelling of 1142388619 in words is "one billion, one hundred forty-two million, three hundred eighty-eight thousand, six hundred nineteen".