1431934673 has 4 divisors (see below), whose sum is σ = 1542083508. Its totient is φ = 1321785840.

The previous prime is 1431934649. The next prime is 1431934687. The reversal of 1431934673 is 3764391341.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 698174929 + 733759744 = 26423^2 + 27088^2 .

It is a cyclic number.

It is not a de Polignac number, because 1431934673 - 2¹⁰ = 1431933649 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1431934673.

It is not an unprimeable number, because it can be changed into a prime (1431934643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55074398 + ... + 55074423.

It is an arithmetic number, because the mean of its divisors is an integer number (385520877).

Almost surely, 2^1431934673 is an apocalyptic number.

1431934673 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1431934673 is a deficient number, since it is larger than the sum of its proper divisors (110148835).

1431934673 is a wasteful number, since it uses less digits than its factorization.

1431934673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110148834.

The product of its digits is 163296, while the sum is 41.

The square root of 1431934673 is about 37840.9126871961. The cubic root of 1431934673 is about 1127.1310187023.

The spelling of 1431934673 in words is "one billion, four hundred thirty-one million, nine hundred thirty-four thousand, six hundred seventy-three".