1440132121 has 16 divisors (see below), whose sum is σ = 1497415680. Its totient is φ = 1384281360.

The previous prime is 1440132107. The next prime is 1440132163. The reversal of 1440132121 is 1212310441.

It is a cyclic number.

It is not a de Polignac number, because 1440132121 - 2¹⁷ = 1440001049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1440132821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 530650 + ... + 533356.

It is an arithmetic number, because the mean of its divisors is an integer number (93588480).

Almost surely, 2^1440132121 is an apocalyptic number.

It is an amenable number.

1440132121 is a deficient number, since it is larger than the sum of its proper divisors (57283559).

1440132121 is a wasteful number, since it uses less digits than its factorization.

1440132121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2964.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1440132121 is about 37949.0727291195. The cubic root of 1440132121 is about 1129.2777698847.

Adding to 1440132121 its reverse (1212310441), we get a palindrome (2652442562).

The spelling of 1440132121 in words is "one billion, four hundred forty million, one hundred thirty-two thousand, one hundred twenty-one".