1145140041 has 4 divisors (see below), whose sum is σ = 1526853392. Its totient is φ = 763426692.

The previous prime is 1145140033. The next prime is 1145140049. The reversal of 1145140041 is 1400415411.

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 an interprime number because it is at equal distance from previous prime (1145140033) and next prime (1145140049).

It is not a de Polignac number, because 1145140041 - 2³ = 1145140033 is a prime.

It is a super-2 number, since 2×1145140041² = 2622691427002963362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145140049) 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, 190856671 + ... + 190856676.

It is an arithmetic number, because the mean of its divisors is an integer number (381713348).

Almost surely, 2^1145140041 is an apocalyptic number.

It is an amenable number.

1145140041 is a deficient number, since it is larger than the sum of its proper divisors (381713351).

1145140041 is an equidigital number, since it uses as much as digits as its factorization.

1145140041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381713350.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 1145140041 is about 33839.9178633755. The cubic root of 1145140041 is about 1046.2116059845.

Adding to 1145140041 its reverse (1400415411), we get a palindrome (2545555452).

The spelling of 1145140041 in words is "one billion, one hundred forty-five million, one hundred forty thousand, forty-one".