1145004131 has 8 divisors (see below), whose sum is σ = 1149185664. Its totient is φ = 1140831360.

The previous prime is 1145004121. The next prime is 1145004191. The reversal of 1145004131 is 1314005411.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1145004131 - 2³⁰ = 71262307 is a prime.

It is a super-2 number, since 2×1145004131² = 2622068920014130322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145004121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 358361 + ... + 361541.

It is an arithmetic number, because the mean of its divisors is an integer number (143648208).

Almost surely, 2^1145004131 is an apocalyptic number.

1145004131 is a deficient number, since it is larger than the sum of its proper divisors (4181533).

1145004131 is an equidigital number, since it uses as much as digits as its factorization.

1145004131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4381.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1145004131 is about 33837.9096724369. The cubic root of 1145004131 is about 1046.1702147602.

Adding to 1145004131 its reverse (1314005411), we get a palindrome (2459009542).

The spelling of 1145004131 in words is "one billion, one hundred forty-five million, four thousand, one hundred thirty-one".