544145131 has 4 divisors (see below), whose sum is σ = 545310792. Its totient is φ = 542979472.

The previous prime is 544145101. The next prime is 544145137. The reversal of 544145131 is 131541445.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 544145131 - 2⁵ = 544145099 is a prime.

It is a super-2 number, since 2×544145131² = 592187847182014322, 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 544145131.

It is not an unprimeable number, because it can be changed into a prime (544145137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 582130 + ... + 583063.

It is an arithmetic number, because the mean of its divisors is an integer number (136327698).

Almost surely, 2^544145131 is an apocalyptic number.

544145131 is a deficient number, since it is larger than the sum of its proper divisors (1165661).

544145131 is a wasteful number, since it uses less digits than its factorization.

544145131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165660.

The product of its digits is 4800, while the sum is 28.

The square root of 544145131 is about 23326.9185920473. The cubic root of 544145131 is about 816.4036088658.

Adding to 544145131 its reverse (131541445), we get a palindrome (675686576).

The spelling of 544145131 in words is "five hundred forty-four million, one hundred forty-five thousand, one hundred thirty-one".