1440261224531 has 8 divisors (see below), whose sum is σ = 1486770892800. Its totient is φ = 1393754658120.

The previous prime is 1440261224503. The next prime is 1440261224533. The reversal of 1440261224531 is 1354221620441.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1440261224531 - 2³⁴ = 1423081355347 is a prime.

It is a super-2 number, since 2×1440261224531² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1440261224491 and 1440261224500.

It is not an unprimeable number, because it can be changed into a prime (1440261224533) 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 7 ways as a sum of consecutive naturals, for example, 187160 + ... + 1707498.

It is an arithmetic number, because the mean of its divisors is an integer number (185846361600).

Almost surely, 2^{1440261224531} is an apocalyptic number.

1440261224531 is a deficient number, since it is larger than the sum of its proper divisors (46509668269).

1440261224531 is a wasteful number, since it uses less digits than its factorization.

1440261224531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1550929.

The product of its (nonzero) digits is 46080, while the sum is 35.

Adding to 1440261224531 its reverse (1354221620441), we get a palindrome (2794482844972).

The spelling of 1440261224531 in words is "one trillion, four hundred forty billion, two hundred sixty-one million, two hundred twenty-four thousand, five hundred thirty-one".