101024155 has 4 divisors (see below), whose sum is σ = 121228992. Its totient is φ = 80819320.

The previous prime is 101024153. The next prime is 101024177. The reversal of 101024155 is 551420101.

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

It is not a de Polignac number, because 101024155 - 2¹ = 101024153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101024153) 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 3 ways as a sum of consecutive naturals, for example, 10102411 + ... + 10102420.

It is an arithmetic number, because the mean of its divisors is an integer number (30307248).

Almost surely, 2^101024155 is an apocalyptic number.

101024155 is a deficient number, since it is larger than the sum of its proper divisors (20204837).

101024155 is an equidigital number, since it uses as much as digits as its factorization.

101024155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20204836.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 101024155 is about 10051.0773054434. The cubic root of 101024155 is about 465.7380732550.

Adding to 101024155 its reverse (551420101), we get a palindrome (652444256).

The spelling of 101024155 in words is "one hundred one million, twenty-four thousand, one hundred fifty-five".