1440123141 has 8 divisors (see below), whose sum is σ = 1920519360. Its totient is φ = 959904512.

The previous prime is 1440123137. The next prime is 1440123161. The reversal of 1440123141 is 1413210441.

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 1440123141 - 2² = 1440123137 is a prime.

It is a super-2 number, since 2×1440123141² = 4147909322487411762, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440123101) 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, 24156 + ... + 58853.

It is an arithmetic number, because the mean of its divisors is an integer number (240064920).

Almost surely, 2^1440123141 is an apocalyptic number.

It is an amenable number.

1440123141 is a deficient number, since it is larger than the sum of its proper divisors (480396219).

1440123141 is an equidigital number, since it uses as much as digits as its factorization.

1440123141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88795.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1440123141 is about 37948.9544124736. The cubic root of 1440123141 is about 1129.2754226613.

Adding to 1440123141 its reverse (1413210441), we get a palindrome (2853333582).

It can be divided in two parts, 144012 and 3141, that added together give a triangular number (147153 = T₅₄₂).

The spelling of 1440123141 in words is "one billion, four hundred forty million, one hundred twenty-three thousand, one hundred forty-one".