101878132 has 36 divisors (see below), whose sum is σ = 190582560. Its totient is φ = 47548864.

The previous prime is 101878129. The next prime is 101878157. The reversal of 101878132 is 231878101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 101878094 and 101878103.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 743568 + ... + 743704.

It is an arithmetic number, because the mean of its divisors is an integer number (5293960).

Almost surely, 2^101878132 is an apocalyptic number.

It is an amenable number.

101878132 is a deficient number, since it is larger than the sum of its proper divisors (88704428).

101878132 is a wasteful number, since it uses less digits than its factorization.

101878132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 31.

The square root of 101878132 is about 10093.4697701038. The cubic root of 101878132 is about 467.0467178417.

Subtracting from 101878132 its sum of digits (31), we obtain a palindrome (101878101).

The spelling of 101878132 in words is "one hundred one million, eight hundred seventy-eight thousand, one hundred thirty-two".