1244542102 has 16 divisors (see below), whose sum is σ = 1898262432. Its totient is φ = 611835840.

The previous prime is 1244542087. The next prime is 1244542109. The reversal of 1244542102 is 2012454421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244542109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41218 + ... + 64714.

It is an arithmetic number, because the mean of its divisors is an integer number (118641402).

Almost surely, 2^1244542102 is an apocalyptic number.

1244542102 is a deficient number, since it is larger than the sum of its proper divisors (653720330).

1244542102 is a wasteful number, since it uses less digits than its factorization.

1244542102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23943.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 1244542102 is about 35278.0682861179. The cubic root of 1244542102 is about 1075.6472329526.

Adding to 1244542102 its reverse (2012454421), we get a palindrome (3256996523).

The spelling of 1244542102 in words is "one billion, two hundred forty-four million, five hundred forty-two thousand, one hundred two".