1200455343 has 32 divisors (see below), whose sum is σ = 1829891520. Its totient is φ = 777237120.

The previous prime is 1200455339. The next prime is 1200455351. The reversal of 1200455343 is 3435540021.

1200455343 is a `hidden beast` number, since 1 + 200 + 455 + 3 + 4 + 3 = 666.

It is not a de Polignac number, because 1200455343 - 2² = 1200455339 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200455383) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 939421 + ... + 940697.

It is an arithmetic number, because the mean of its divisors is an integer number (57184110).

Almost surely, 2^1200455343 is an apocalyptic number.

1200455343 is a deficient number, since it is larger than the sum of its proper divisors (629436177).

1200455343 is a wasteful number, since it uses less digits than its factorization.

1200455343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2264 (or 2258 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 1200455343 is about 34647.5878381165. The cubic root of 1200455343 is about 1062.7929616691.

Adding to 1200455343 its reverse (3435540021), we get a palindrome (4635995364).

The spelling of 1200455343 in words is "one billion, two hundred million, four hundred fifty-five thousand, three hundred forty-three".