88661142 has 20 divisors (see below), whose sum is σ = 198666996. Its totient is φ = 29553660.

The previous prime is 88661119. The next prime is 88661189. The reversal of 88661142 is 24116688.

It is a junction number, because it is equal to n+sod(n) for n = 88661097 and 88661106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 273484 + ... + 273807.

Almost surely, 2^88661142 is an apocalyptic number.

88661142 is an abundant number, since it is smaller than the sum of its proper divisors (110005854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

88661142 is a wasteful number, since it uses less digits than its factorization.

88661142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547305 (or 547296 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 88661142 is about 9416.0045666939. The cubic root of 88661142 is about 445.9071542205.

The spelling of 88661142 in words is "eighty-eight million, six hundred sixty-one thousand, one hundred forty-two".