1142040041 has 4 divisors (see below), whose sum is σ = 1158125184. Its totient is φ = 1125954900.

The previous prime is 1142040023. The next prime is 1142040043. The reversal of 1142040041 is 1400402411.

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 a de Polignac number, because none of the positive numbers 2^k-1142040041 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1142040043) 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, 8042465 + ... + 8042606.

It is an arithmetic number, because the mean of its divisors is an integer number (289531296).

Almost surely, 2^1142040041 is an apocalyptic number.

It is an amenable number.

1142040041 is a deficient number, since it is larger than the sum of its proper divisors (16085143).

1142040041 is an equidigital number, since it uses as much as digits as its factorization.

1142040041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16085142.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1142040041 is about 33794.0829288205. The cubic root of 1142040041 is about 1045.2666889526.

Adding to 1142040041 its reverse (1400402411), we get a palindrome (2542442452).

The spelling of 1142040041 in words is "one billion, one hundred forty-two million, forty thousand, forty-one".