101481155 has 4 divisors (see below), whose sum is σ = 121777392. Its totient is φ = 81184920.

The previous prime is 101481151. The next prime is 101481157. The reversal of 101481155 is 551184101.

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

It is not a de Polignac number, because 101481155 - 2² = 101481151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101481151) 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, 10148111 + ... + 10148120.

It is an arithmetic number, because the mean of its divisors is an integer number (30444348).

Almost surely, 2^101481155 is an apocalyptic number.

101481155 is a deficient number, since it is larger than the sum of its proper divisors (20296237).

101481155 is an equidigital number, since it uses as much as digits as its factorization.

101481155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20296236.

The product of its (nonzero) digits is 800, while the sum is 26.

The square root of 101481155 is about 10073.7855347431. The cubic root of 101481155 is about 466.4392988211.

The spelling of 101481155 in words is "one hundred one million, four hundred eighty-one thousand, one hundred fifty-five".