1440103142 has 8 divisors (see below), whose sum is σ = 2163900216. Its totient is φ = 718803072.

The previous prime is 1440103129. The next prime is 1440103169. The reversal of 1440103142 is 2413010441.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 622808 + ... + 625115.

It is an arithmetic number, because the mean of its divisors is an integer number (270487527).

Almost surely, 2^1440103142 is an apocalyptic number.

1440103142 is a deficient number, since it is larger than the sum of its proper divisors (723797074).

1440103142 is a wasteful number, since it uses less digits than its factorization.

1440103142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248502.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1440103142 is about 37948.6909128629. The cubic root of 1440103142 is about 1129.2701952186.

Adding to 1440103142 its reverse (2413010441), we get a palindrome (3853113583).

The spelling of 1440103142 in words is "one billion, four hundred forty million, one hundred three thousand, one hundred forty-two".