101115506 has 4 divisors (see below), whose sum is σ = 151673262. Its totient is φ = 50557752.

The previous prime is 101115499. The next prime is 101115517. The reversal of 101115506 is 605511101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 605511101 = 13 ⋅46577777.

It can be written as a sum of positive squares in only one way, i.e., 95550625 + 5564881 = 9775^2 + 2359^2 .

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 as a sum of consecutive naturals, namely, 25278875 + ... + 25278878.

Almost surely, 2^101115506 is an apocalyptic number.

101115506 is a deficient number, since it is larger than the sum of its proper divisors (50557756).

101115506 is an equidigital number, since it uses as much as digits as its factorization.

101115506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50557755.

The product of its (nonzero) digits is 150, while the sum is 20.

The square root of 101115506 is about 10055.6206173463. The cubic root of 101115506 is about 465.8784120391.

Adding to 101115506 its reverse (605511101), we get a palindrome (706626607).

The spelling of 101115506 in words is "one hundred one million, one hundred fifteen thousand, five hundred six".