1247430102 has 16 divisors (see below), whose sum is σ = 2547942912. Its totient is φ = 406962920.

The previous prime is 1247430061. The next prime is 1247430103. The reversal of 1247430102 is 2010347421.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1247430103) 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, 2211474 + ... + 2212037.

It is an arithmetic number, because the mean of its divisors is an integer number (159246432).

Almost surely, 2^1247430102 is an apocalyptic number.

1247430102 is an abundant number, since it is smaller than the sum of its proper divisors (1300512810).

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

1247430102 is a wasteful number, since it uses less digits than its factorization.

1247430102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4423563.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 1247430102 is about 35318.9765140498. The cubic root of 1247430102 is about 1076.4786148746.

Adding to 1247430102 its reverse (2010347421), we get a palindrome (3257777523).

The spelling of 1247430102 in words is "one billion, two hundred forty-seven million, four hundred thirty thousand, one hundred two".