1431445072 has 20 divisors (see below), whose sum is σ = 2778120180. Its totient is φ = 714510848.

The previous prime is 1431445061. The next prime is 1431445087. The reversal of 1431445072 is 2705441341.

It can be written as a sum of positive squares in 2 ways, for example, as 459502096 + 971942976 = 21436^2 + 31176^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65947 + ... + 84922.

It is an arithmetic number, because the mean of its divisors is an integer number (138906009).

Almost surely, 2^1431445072 is an apocalyptic number.

It is an amenable number.

1431445072 is a deficient number, since it is larger than the sum of its proper divisors (1346675108).

1431445072 is a wasteful number, since it uses less digits than its factorization.

1431445072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151470 (or 151464 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 1431445072 is about 37834.4429323335. The cubic root of 1431445072 is about 1127.0025427806.

The spelling of 1431445072 in words is "one billion, four hundred thirty-one million, four hundred forty-five thousand, seventy-two".