86438145 has 16 divisors (see below), whose sum is σ = 138926592. Its totient is φ = 45891840.

The previous prime is 86438113. The next prime is 86438147. The reversal of 86438145 is 54183468.

It is not a de Polignac number, because 86438145 - 2⁵ = 86438113 is a prime.

It is a super-2 number, since 2×86438145² = 14943105822082050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86438147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9576 + ... + 16265.

It is an arithmetic number, because the mean of its divisors is an integer number (8682912).

Almost surely, 2^86438145 is an apocalyptic number.

It is an amenable number.

86438145 is a deficient number, since it is larger than the sum of its proper divisors (52488447).

86438145 is a wasteful number, since it uses less digits than its factorization.

86438145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26072.

The product of its digits is 92160, while the sum is 39.

The square root of 86438145 is about 9297.2116787777. The cubic root of 86438145 is about 442.1488292378.

The spelling of 86438145 in words is "eighty-six million, four hundred thirty-eight thousand, one hundred forty-five".