1231433454 has 16 divisors (see below), whose sum is σ = 2607741648. Its totient is φ = 386332032.

The previous prime is 1231433431. The next prime is 1231433461. The reversal of 1231433454 is 4543341321.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6036337 + ... + 6036540.

It is an arithmetic number, because the mean of its divisors is an integer number (162983853).

Almost surely, 2^1231433454 is an apocalyptic number.

1231433454 is an abundant number, since it is smaller than the sum of its proper divisors (1376308194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231433454 is a wasteful number, since it uses less digits than its factorization.

1231433454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12072899.

The product of its digits is 17280, while the sum is 30.

The square root of 1231433454 is about 35091.7861329400. The cubic root of 1231433454 is about 1071.8573308083.

Adding to 1231433454 its reverse (4543341321), we get a palindrome (5774774775).

The spelling of 1231433454 in words is "one billion, two hundred thirty-one million, four hundred thirty-three thousand, four hundred fifty-four".