101840427 has 12 divisors (see below), whose sum is σ = 158418624. Its totient is φ = 62670960.

The previous prime is 101840407. The next prime is 101840443. The reversal of 101840427 is 724048101.

It is not a de Polignac number, because 101840427 - 2¹⁰ = 101839403 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101840427.

It is not an unprimeable number, because it can be changed into a prime (101840407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 435099 + ... + 435332.

It is an arithmetic number, because the mean of its divisors is an integer number (13201552).

Almost surely, 2^101840427 is an apocalyptic number.

101840427 is a deficient number, since it is larger than the sum of its proper divisors (56578197).

101840427 is a wasteful number, since it uses less digits than its factorization.

101840427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870450 (or 870447 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 101840427 is about 10091.6018054618. The cubic root of 101840427 is about 466.9890928831.

Adding to 101840427 its reverse (724048101), we get a palindrome (825888528).

The spelling of 101840427 in words is "one hundred one million, eight hundred forty thousand, four hundred twenty-seven".