1144227550531 has 4 divisors (see below), whose sum is σ = 1232245054432. Its totient is φ = 1056210046632.

The previous prime is 1144227550513. The next prime is 1144227550553. The reversal of 1144227550531 is 1350557224411.

It is a happy number.

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

It is not a de Polignac number, because 1144227550531 - 2²¹ = 1144225453379 is a prime.

It is a super-2 number, since 2×1144227550531² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144227557531) 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, 44008751931 + ... + 44008751956.

It is an arithmetic number, because the mean of its divisors is an integer number (308061263608).

Almost surely, 2^{1144227550531} is an apocalyptic number.

1144227550531 is a deficient number, since it is larger than the sum of its proper divisors (88017503901).

1144227550531 is an equidigital number, since it uses as much as digits as its factorization.

1144227550531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88017503900.

The product of its (nonzero) digits is 168000, while the sum is 40.

The spelling of 1144227550531 in words is "one trillion, one hundred forty-four billion, two hundred twenty-seven million, five hundred fifty thousand, five hundred thirty-one".