1145201041 has 4 divisors (see below), whose sum is σ = 1205474800. Its totient is φ = 1084927284.

The previous prime is 1145201017. The next prime is 1145201081. The reversal of 1145201041 is 1401025411.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1401025411 = 619 ⋅2263369.

It is a de Polignac number, because none of the positive numbers 2^k-1145201041 is a prime.

It is a super-2 number, since 2×1145201041² = 2622970848614967362, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 60273739 = 1145201041 / (1 + 1 + 4 + 5 + 2 + 0 + 1 + 0 + 4 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145201011) 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, 30136851 + ... + 30136888.

It is an arithmetic number, because the mean of its divisors is an integer number (301368700).

Almost surely, 2^1145201041 is an apocalyptic number.

It is an amenable number.

1145201041 is a deficient number, since it is larger than the sum of its proper divisors (60273759).

1145201041 is an equidigital number, since it uses as much as digits as its factorization.

1145201041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60273758.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 1145201041 is about 33840.8191537971. The cubic root of 1145201041 is about 1046.2301823951.

Adding to 1145201041 its reverse (1401025411), we get a palindrome (2546226452).

The spelling of 1145201041 in words is "one billion, one hundred forty-five million, two hundred one thousand, forty-one".