122240154 has 16 divisors (see below), whose sum is σ = 249093792. Its totient is φ = 39977808.

The previous prime is 122240137. The next prime is 122240189. The reversal of 122240154 is 451042221.

It is a self number, because there is not a number n which added to its sum of digits gives 122240154.

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, 191884 + ... + 192519.

It is an arithmetic number, because the mean of its divisors is an integer number (15568362).

Almost surely, 2^122240154 is an apocalyptic number.

122240154 is an abundant number, since it is smaller than the sum of its proper divisors (126853638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122240154 is a wasteful number, since it uses less digits than its factorization.

122240154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384461.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 122240154 is about 11056.2269332716. The cubic root of 122240154 is about 496.2927864011.

Adding to 122240154 its reverse (451042221), we get a palindrome (573282375).

The spelling of 122240154 in words is "one hundred twenty-two million, two hundred forty thousand, one hundred fifty-four".