1145040101 has 4 divisors (see below), whose sum is σ = 1146019104. Its totient is φ = 1144061100.

The previous prime is 1145040079. The next prime is 1145040121. The reversal of 1145040101 is 1010405411.

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-1145040101 is a prime.

It is a super-2 number, since 2×1145040101² = 2622233665796180402, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1145040101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145040121) 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, 487745 + ... + 490086.

It is an arithmetic number, because the mean of its divisors is an integer number (286504776).

Almost surely, 2^1145040101 is an apocalyptic number.

It is an amenable number.

1145040101 is a deficient number, since it is larger than the sum of its proper divisors (979003).

1145040101 is an equidigital number, since it uses as much as digits as its factorization.

1145040101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979002.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 1145040101 is about 33838.4411727254. The cubic root of 1145040101 is about 1046.1811696984.

Adding to 1145040101 its reverse (1010405411), we get a palindrome (2155445512).

The spelling of 1145040101 in words is "one billion, one hundred forty-five million, forty thousand, one hundred one".