101640230 has 32 divisors (see below), whose sum is σ = 188727840. Its totient is φ = 39386880.

The previous prime is 101640193. The next prime is 101640251. The reversal of 101640230 is 32046101.

It is a junction number, because it is equal to n+sod(n) for n = 101640199 and 101640208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63581 + ... + 65159.

It is an arithmetic number, because the mean of its divisors is an integer number (5897745).

Almost surely, 2^101640230 is an apocalyptic number.

101640230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101640230 is a deficient number, since it is larger than the sum of its proper divisors (87087610).

101640230 is a wasteful number, since it uses less digits than its factorization.

101640230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1784.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 101640230 is about 10081.6779357407. The cubic root of 101640230 is about 466.6828911593.

Adding to 101640230 its reverse (32046101), we get a palindrome (133686331).

The spelling of 101640230 in words is "one hundred one million, six hundred forty thousand, two hundred thirty".