101540169 has 16 divisors (see below), whose sum is σ = 150690240. Its totient is φ = 67576320.

The previous prime is 101540143. The next prime is 101540171. The reversal of 101540169 is 961045101.

101540169 is a `hidden beast` number, since 101 + 540 + 16 + 9 = 666.

It is not a de Polignac number, because 101540169 - 2⁸ = 101539913 is a prime.

It is a super-2 number, since 2×101540169² = 20620811841097122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (101540119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14374 + ... + 20240.

It is an arithmetic number, because the mean of its divisors is an integer number (9418140).

Almost surely, 2^101540169 is an apocalyptic number.

It is an amenable number.

101540169 is a deficient number, since it is larger than the sum of its proper divisors (49150071).

101540169 is an equidigital number, since it uses as much as digits as its factorization.

101540169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6517 (or 6511 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 101540169 is about 10076.7141966020. The cubic root of 101540169 is about 466.5296969339.

The spelling of 101540169 in words is "one hundred one million, five hundred forty thousand, one hundred sixty-nine".