101640486 has 16 divisors (see below), whose sum is σ = 204134400. Its totient is φ = 33737928.

The previous prime is 101640463. The next prime is 101640491. The reversal of 101640486 is 684046101.

It is a super-3 number, since 3×101640486³ (a number of 25 digits) contains 333 as substring.

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 7 ways as a sum of consecutive naturals, for example, 34006 + ... + 36873.

It is an arithmetic number, because the mean of its divisors is an integer number (12758400).

Almost surely, 2^101640486 is an apocalyptic number.

101640486 is an abundant number, since it is smaller than the sum of its proper divisors (102493914).

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

101640486 is a wasteful number, since it uses less digits than its factorization.

101640486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71123.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 101640486 is about 10081.6906320319. The cubic root of 101640486 is about 466.6832829684.

Adding to 101640486 its reverse (684046101), we get a palindrome (785686587).

The spelling of 101640486 in words is "one hundred one million, six hundred forty thousand, four hundred eighty-six".