101640361 has 4 divisors (see below), whose sum is σ = 101663632. Its totient is φ = 101617092.

The previous prime is 101640359. The next prime is 101640391. The reversal of 101640361 is 163046101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 101640361 - 2¹ = 101640359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101640311) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2895 + ... + 14548.

It is an arithmetic number, because the mean of its divisors is an integer number (25415908).

Almost surely, 2^101640361 is an apocalyptic number.

It is an amenable number.

101640361 is a deficient number, since it is larger than the sum of its proper divisors (23271).

101640361 is an equidigital number, since it uses as much as digits as its factorization.

101640361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23270.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 101640361 is about 10081.6844326729. The cubic root of 101640361 is about 466.6830916555.

Adding to 101640361 its reverse (163046101), we get a palindrome (264686462).

The spelling of 101640361 in words is "one hundred one million, six hundred forty thousand, three hundred sixty-one".