1145431418 has 8 divisors (see below), whose sum is σ = 1792849248. Its totient is φ = 547815004.

The previous prime is 1145431409. The next prime is 1145431439. The reversal of 1145431418 is 8141345411.

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

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, 12450296 + ... + 12450387.

It is an arithmetic number, because the mean of its divisors is an integer number (224106156).

Almost surely, 2^1145431418 is an apocalyptic number.

1145431418 is a deficient number, since it is larger than the sum of its proper divisors (647417830).

1145431418 is a wasteful number, since it uses less digits than its factorization.

1145431418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24900708.

The product of its digits is 7680, while the sum is 32.

The square root of 1145431418 is about 33844.2228157185. Note that the first 3 decimals coincide. The cubic root of 1145431418 is about 1046.3003334579.

Adding to 1145431418 its reverse (8141345411), we get a palindrome (9286776829).

The spelling of 1145431418 in words is "one billion, one hundred forty-five million, four hundred thirty-one thousand, four hundred eighteen".