1145525041 has 4 divisors (see below), whose sum is σ = 1148516352. Its totient is φ = 1142533732.

The previous prime is 1145525023. The next prime is 1145525047. The reversal of 1145525041 is 1405255411.

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 not a de Polignac number, because 1145525041 - 2⁵ = 1145525009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145525047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1495081 + ... + 1495846.

It is an arithmetic number, because the mean of its divisors is an integer number (287129088).

Almost surely, 2^1145525041 is an apocalyptic number.

It is an amenable number.

1145525041 is a deficient number, since it is larger than the sum of its proper divisors (2991311).

1145525041 is an equidigital number, since it uses as much as digits as its factorization.

1145525041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2991310.

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 1145525041 is about 33845.6059334148. The cubic root of 1145525041 is about 1046.3288394879.

It can be divided in two parts, 11455250 and 41, that added together give a triangular number (11455291 = T₄₇₈₆).

The spelling of 1145525041 in words is "one billion, one hundred forty-five million, five hundred twenty-five thousand, forty-one".