78523132 has 12 divisors (see below), whose sum is σ = 137513376. Its totient is φ = 39233600.

The previous prime is 78523099. The next prime is 78523147. The reversal of 78523132 is 23132587.

It is a junction number, because it is equal to n+sod(n) for n = 78523094 and 78523103.

It is a congruent number.

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, 132 + ... + 12532.

It is an arithmetic number, because the mean of its divisors is an integer number (11459448).

Almost surely, 2^78523132 is an apocalyptic number.

It is an amenable number.

78523132 is a deficient number, since it is larger than the sum of its proper divisors (58990244).

78523132 is a wasteful number, since it uses less digits than its factorization.

78523132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13988 (or 13986 counting only the distinct ones).

The product of its digits is 10080, while the sum is 31.

The square root of 78523132 is about 8861.3278914619. The cubic root of 78523132 is about 428.2189391392.

The spelling of 78523132 in words is "seventy-eight million, five hundred twenty-three thousand, one hundred thirty-two".