1431345545 has 16 divisors (see below), whose sum is σ = 2048336640. Its totient is φ = 938819904.

The previous prime is 1431345533. The next prime is 1431345551. The reversal of 1431345545 is 5455431341.

It is a cyclic number.

It is not a de Polignac number, because 1431345545 - 2¹⁰ = 1431344521 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

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 15 ways as a sum of consecutive naturals, for example, 888230 + ... + 889839.

It is an arithmetic number, because the mean of its divisors is an integer number (128021040).

Almost surely, 2^1431345545 is an apocalyptic number.

It is an amenable number.

1431345545 is a deficient number, since it is larger than the sum of its proper divisors (616991095).

1431345545 is a wasteful number, since it uses less digits than its factorization.

1431345545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1778104.

The product of its digits is 72000, while the sum is 35.

The square root of 1431345545 is about 37833.1276132439. The cubic root of 1431345545 is about 1126.9764223740.

Adding to 1431345545 its reverse (5455431341), we get a palindrome (6886776886).

The spelling of 1431345545 in words is "one billion, four hundred thirty-one million, three hundred forty-five thousand, five hundred forty-five".