1142619261 has 8 divisors (see below), whose sum is σ = 1741134144. Its totient is φ = 652925280.

The previous prime is 1142619239. The next prime is 1142619293. The reversal of 1142619261 is 1629162411.

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

It is not a de Polignac number, because 1142619261 - 2⁵ = 1142619229 is a prime.

It is a super-2 number, since 2×1142619261² = 2611157551216372242, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142619221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27205200 + ... + 27205241.

It is an arithmetic number, because the mean of its divisors is an integer number (217641768).

Almost surely, 2^1142619261 is an apocalyptic number.

It is an amenable number.

1142619261 is a deficient number, since it is larger than the sum of its proper divisors (598514883).

1142619261 is an equidigital number, since it uses as much as digits as its factorization.

1142619261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54410451.

The product of its digits is 5184, while the sum is 33.

The square root of 1142619261 is about 33802.6516859255. The cubic root of 1142619261 is about 1045.4433719127.

The spelling of 1142619261 in words is "one billion, one hundred forty-two million, six hundred nineteen thousand, two hundred sixty-one".