88142539 has 4 divisors (see below), whose sum is σ = 92781640. Its totient is φ = 83503440.

The previous prime is 88142491. The next prime is 88142557. The reversal of 88142539 is 93524188.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 88142539 - 2¹¹ = 88140491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88142839) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2319522 + ... + 2319559.

It is an arithmetic number, because the mean of its divisors is an integer number (23195410).

Almost surely, 2^88142539 is an apocalyptic number.

88142539 is a deficient number, since it is larger than the sum of its proper divisors (4639101).

88142539 is a wasteful number, since it uses less digits than its factorization.

88142539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4639100.

The product of its digits is 69120, while the sum is 40.

The square root of 88142539 is about 9388.4257998879. The cubic root of 88142539 is about 445.0360430344.

The spelling of 88142539 in words is "eighty-eight million, one hundred forty-two thousand, five hundred thirty-nine".