71430102 has 12 divisors (see below), whose sum is σ = 154765260. Its totient is φ = 23810028.

The previous prime is 71430089. The next prime is 71430109. The reversal of 71430102 is 20103417.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 3968339 = 71430102 / (7 + 1 + 4 + 3 + 0 + 1 + 0 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71430109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1984152 + ... + 1984187.

It is an arithmetic number, because the mean of its divisors is an integer number (12897105).

Almost surely, 2^71430102 is an apocalyptic number.

71430102 is an abundant number, since it is smaller than the sum of its proper divisors (83335158).

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

71430102 is a wasteful number, since it uses less digits than its factorization.

71430102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3968347 (or 3968344 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 71430102 is about 8451.6330966269. The cubic root of 71430102 is about 414.9162302491.

Adding to 71430102 its reverse (20103417), we get a palindrome (91533519).

The spelling of 71430102 in words is "seventy-one million, four hundred thirty thousand, one hundred two".