122403155 has 16 divisors (see below), whose sum is σ = 171773184. Its totient is φ = 81980640.

The previous prime is 122403143. The next prime is 122403157. The reversal of 122403155 is 551304221.

It is not a de Polignac number, because 122403155 - 2¹⁶ = 122337619 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 122403155.

It is not an unprimeable number, because it can be changed into a prime (122403157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39161 + ... + 42170.

It is an arithmetic number, because the mean of its divisors is an integer number (10735824).

Almost surely, 2^122403155 is an apocalyptic number.

122403155 is a deficient number, since it is larger than the sum of its proper divisors (49370029).

122403155 is an equidigital number, since it uses as much as digits as its factorization.

122403155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81386.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 122403155 is about 11063.5959344148. The cubic root of 122403155 is about 496.5132821151.

Adding to 122403155 its reverse (551304221), we get a palindrome (673707376).

The spelling of 122403155 in words is "one hundred twenty-two million, four hundred three thousand, one hundred fifty-five".