86042139 has 8 divisors (see below), whose sum is σ = 116175360. Its totient is φ = 56635176.

The previous prime is 86042129. The next prime is 86042141. The reversal of 86042139 is 93124068.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 86042139 - 2¹³ = 86033947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86042129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181287 + ... + 181760.

It is an arithmetic number, because the mean of its divisors is an integer number (14521920).

Almost surely, 2^86042139 is an apocalyptic number.

86042139 is a deficient number, since it is larger than the sum of its proper divisors (30133221).

86042139 is a wasteful number, since it uses less digits than its factorization.

86042139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363129.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 86042139 is about 9275.8901998676. The cubic root of 86042139 is about 441.4725781759.

The spelling of 86042139 in words is "eighty-six million, forty-two thousand, one hundred thirty-nine".