1145251541 has 16 divisors (see below), whose sum is σ = 1323888384. Its totient is φ = 970406784.

The previous prime is 1145251519. The next prime is 1145251559. The reversal of 1145251541 is 1451525411.

It is a cyclic number.

It is not a de Polignac number, because 1145251541 - 2⁶ = 1145251477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145251561) 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 15 ways as a sum of consecutive naturals, for example, 573641 + ... + 575633.

It is an arithmetic number, because the mean of its divisors is an integer number (82743024).

Almost surely, 2^1145251541 is an apocalyptic number.

It is an amenable number.

1145251541 is a deficient number, since it is larger than the sum of its proper divisors (178636843).

1145251541 is a wasteful number, since it uses less digits than its factorization.

1145251541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2900.

The product of its digits is 4000, while the sum is 29.

The square root of 1145251541 is about 33841.5652859025. The cubic root of 1145251541 is about 1046.2455607277.

Adding to 1145251541 its reverse (1451525411), we get a palindrome (2596776952).

The spelling of 1145251541 in words is "one billion, one hundred forty-five million, two hundred fifty-one thousand, five hundred forty-one".