102238479 has 12 divisors (see below), whose sum is σ = 168774736. Its totient is φ = 58421952.

The previous prime is 102238447. The next prime is 102238481. The reversal of 102238479 is 974832201.

It is not a de Polignac number, because 102238479 - 2⁵ = 102238447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102238879) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 811354 + ... + 811479.

Almost surely, 2^102238479 is an apocalyptic number.

102238479 is a deficient number, since it is larger than the sum of its proper divisors (66536257).

102238479 is a wasteful number, since it uses less digits than its factorization.

102238479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622846 (or 1622843 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 102238479 is about 10111.3045152443. The cubic root of 102238479 is about 467.5967241506.

The spelling of 102238479 in words is "one hundred two million, two hundred thirty-eight thousand, four hundred seventy-nine".