102115432 has 16 divisors (see below), whose sum is σ = 191584260. Its totient is φ = 51026304.

The previous prime is 102115427. The next prime is 102115441. The reversal of 102115432 is 234511201.

It can be written as a sum of positive squares in 2 ways, for example, as 95531076 + 6584356 = 9774^2 + 2566^2 .

It is a super-2 number, since 2×102115432² = 20855122905093248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15598 + ... + 21154.

Almost surely, 2^102115432 is an apocalyptic number.

It is an amenable number.

102115432 is a deficient number, since it is larger than the sum of its proper divisors (89468828).

102115432 is a wasteful number, since it uses less digits than its factorization.

102115432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7860 (or 7856 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 102115432 is about 10105.2180580134. The cubic root of 102115432 is about 467.4090600657.

Adding to 102115432 its reverse (234511201), we get a palindrome (336626633).

The spelling of 102115432 in words is "one hundred two million, one hundred fifteen thousand, four hundred thirty-two".