101640356 has 6 divisors (see below), whose sum is σ = 177870630. Its totient is φ = 50820176.

The previous prime is 101640323. The next prime is 101640359. The reversal of 101640356 is 653046101.

It can be written as a sum of positive squares in only one way, i.e., 65448100 + 36192256 = 8090^2 + 6016^2 .

It is not an unprimeable number, because it can be changed into a prime (101640359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12705041 + ... + 12705048.

It is an arithmetic number, because the mean of its divisors is an integer number (29645105).

Almost surely, 2^101640356 is an apocalyptic number.

It is an amenable number.

101640356 is a deficient number, since it is larger than the sum of its proper divisors (76230274).

101640356 is a wasteful number, since it uses less digits than its factorization.

101640356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25410093 (or 25410091 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 101640356 is about 10081.6841846985. The cubic root of 101640356 is about 466.6830840029.

Adding to 101640356 its reverse (653046101), we get a palindrome (754686457).

The spelling of 101640356 in words is "one hundred one million, six hundred forty thousand, three hundred fifty-six".