1243455102 has 48 divisors (see below), whose sum is σ = 2746798080. Its totient is φ = 406458000.

The previous prime is 1243455091. The next prime is 1243455107. The reversal of 1243455102 is 2015543421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243455107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 211827 + ... + 217617.

It is an arithmetic number, because the mean of its divisors is an integer number (57224960).

Almost surely, 2^1243455102 is an apocalyptic number.

1243455102 is an abundant number, since it is smaller than the sum of its proper divisors (1503342978).

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

1243455102 is a wasteful number, since it uses less digits than its factorization.

1243455102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6029 (or 6026 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1243455102 is about 35262.6587483133. The cubic root of 1243455102 is about 1075.3339800938. Note that the first 3 decimals are identical.

Adding to 1243455102 its reverse (2015543421), we get a palindrome (3258998523).

The spelling of 1243455102 in words is "one billion, two hundred forty-three million, four hundred fifty-five thousand, one hundred two".