122155304 has 8 divisors (see below), whose sum is σ = 229041210. Its totient is φ = 61077648.

The previous prime is 122155291. The next prime is 122155307. The reversal of 122155304 is 403551221.

Added to its reverse (403551221) it gives a triangular number (525706525 = T₃₂₄₂₅).

It can be written as a sum of positive squares in only one way, i.e., 116856100 + 5299204 = 10810^2 + 2302^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 122155304.

It is not an unprimeable number, because it can be changed into a prime (122155307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7634699 + ... + 7634714.

Almost surely, 2^122155304 is an apocalyptic number.

It is an amenable number.

122155304 is a deficient number, since it is larger than the sum of its proper divisors (106885906).

122155304 is a wasteful number, since it uses less digits than its factorization.

122155304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15269419 (or 15269415 counting only the distinct ones).

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

The square root of 122155304 is about 11052.3890630035. The cubic root of 122155304 is about 496.1779300068.

Adding to 122155304 its reverse (403551221), we get a triangular number (525706525 = T₃₂₄₂₅).

The spelling of 122155304 in words is "one hundred twenty-two million, one hundred fifty-five thousand, three hundred four".