88138012 has 12 divisors (see below), whose sum is σ = 155188936. Its totient is φ = 43798320.

The previous prime is 88138007. The next prime is 88138021. The reversal of 88138012 is 21083188.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

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, 66939 + ... + 68242.

Almost surely, 2^88138012 is an apocalyptic number.

It is an amenable number.

88138012 is a deficient number, since it is larger than the sum of its proper divisors (67050924).

88138012 is a wasteful number, since it uses less digits than its factorization.

88138012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135348 (or 135346 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 31.

The square root of 88138012 is about 9388.1847020604. The cubic root of 88138012 is about 445.0284238882.

It can be divided in two parts, 88 and 138012, that multiplied together give a triangular number (12145056 = T₄₉₂₈).

The spelling of 88138012 in words is "eighty-eight million, one hundred thirty-eight thousand, twelve".