101541155 has 4 divisors (see below), whose sum is σ = 121849392. Its totient is φ = 81232920.

The previous prime is 101541137. The next prime is 101541157. The reversal of 101541155 is 551145101.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 101541155 - 2⁶ = 101541091 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101541155.

It is not an unprimeable number, because it can be changed into a prime (101541157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10154111 + ... + 10154120.

It is an arithmetic number, because the mean of its divisors is an integer number (30462348).

Almost surely, 2^101541155 is an apocalyptic number.

101541155 is a deficient number, since it is larger than the sum of its proper divisors (20308237).

101541155 is an equidigital number, since it uses as much as digits as its factorization.

101541155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20308236.

The product of its (nonzero) digits is 500, while the sum is 23.

The square root of 101541155 is about 10076.7631211615. The cubic root of 101541155 is about 466.5312069990.

Adding to 101541155 its reverse (551145101), we get a palindrome (652686256).

It can be divided in two parts, 101541 and 155, that multiplied together give a triangular number (15738855 = T₅₆₁₀).

The spelling of 101541155 in words is "one hundred one million, five hundred forty-one thousand, one hundred fifty-five".