10020155 has 8 divisors (see below), whose sum is σ = 12349392. Its totient is φ = 7799328.

The previous prime is 10020151. The next prime is 10020169. The reversal of 10020155 is 55102001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10020155 - 2² = 10020151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10020151) 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 7 ways as a sum of consecutive naturals, for example, 26897 + ... + 27266.

It is an arithmetic number, because the mean of its divisors is an integer number (1543674).

Almost surely, 2^10020155 is an apocalyptic number.

10020155 is a deficient number, since it is larger than the sum of its proper divisors (2329237).

10020155 is an equidigital number, since it uses as much as digits as its factorization.

10020155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54205.

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 10020155 is about 3165.4628413551. The cubic root of 10020155 is about 215.5881139733.

Adding to 10020155 its reverse (55102001), we get a palindrome (65122156).

The spelling of 10020155 in words is "ten million, twenty thousand, one hundred fifty-five".