131144045 has 8 divisors (see below), whose sum is σ = 164215296. Its totient is φ = 100353616.

The previous prime is 131144017. The next prime is 131144047. The reversal of 131144045 is 540441131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131144045 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

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 131144045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131144047) 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, 570077 + ... + 570306.

It is an arithmetic number, because the mean of its divisors is an integer number (20526912).

Almost surely, 2^131144045 is an apocalyptic number.

It is an amenable number.

131144045 is a deficient number, since it is larger than the sum of its proper divisors (33071251).

131144045 is a wasteful number, since it uses less digits than its factorization.

131144045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140411.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 131144045 is about 11451.8140484379. The cubic root of 131144045 is about 508.0613894955.

Adding to 131144045 its reverse (540441131), we get a palindrome (671585176).

The spelling of 131144045 in words is "one hundred thirty-one million, one hundred forty-four thousand, forty-five".