103220155 has 8 divisors (see below), whose sum is σ = 125609184. Its totient is φ = 81412800.

The previous prime is 103220129. The next prime is 103220177. The reversal of 103220155 is 551022301.

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

It is not a de Polignac number, because 103220155 - 2⁵ = 103220123 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145026 + ... + 145735.

It is an arithmetic number, because the mean of its divisors is an integer number (15701148).

Almost surely, 2^103220155 is an apocalyptic number.

103220155 is a deficient number, since it is larger than the sum of its proper divisors (22389029).

103220155 is an equidigital number, since it uses as much as digits as its factorization.

103220155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290837.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 103220155 is about 10159.7320338678. The cubic root of 103220155 is about 469.0885535254.

Adding to 103220155 its reverse (551022301), we get a palindrome (654242456).

It can be divided in two parts, 1032201 and 55, that added together give a square (1032256 = 1016²).

The spelling of 103220155 in words is "one hundred three million, two hundred twenty thousand, one hundred fifty-five".