1445247142 has 8 divisors (see below), whose sum is σ = 2208774096. Its totient is φ = 708989112.

The previous prime is 1445247131. The next prime is 1445247169. The reversal of 1445247142 is 2417425441.

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

It is a junction number, because it is equal to n+sod(n) for n = 1445247098 and 1445247107.

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, 6817098 + ... + 6817309.

It is an arithmetic number, because the mean of its divisors is an integer number (276096762).

Almost surely, 2^1445247142 is an apocalyptic number.

1445247142 is a deficient number, since it is larger than the sum of its proper divisors (763526954).

1445247142 is a wasteful number, since it uses less digits than its factorization.

1445247142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13634462.

The product of its digits is 35840, while the sum is 34.

The square root of 1445247142 is about 38016.4062215249. The cubic root of 1445247142 is about 1130.6131691882.

The spelling of 1445247142 in words is "one billion, four hundred forty-five million, two hundred forty-seven thousand, one hundred forty-two".