122161455 has 48 divisors (see below), whose sum is σ = 229057920. Its totient is φ = 59871744.

The previous prime is 122161451. The next prime is 122161463. The reversal of 122161455 is 554161221.

It is not a de Polignac number, because 122161455 - 2² = 122161451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122161451) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 214411 + ... + 214979.

It is an arithmetic number, because the mean of its divisors is an integer number (4772040).

Almost surely, 2^122161455 is an apocalyptic number.

122161455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

122161455 is a deficient number, since it is larger than the sum of its proper divisors (106896465).

122161455 is a wasteful number, since it uses less digits than its factorization.

122161455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960 (or 957 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 122161455 is about 11052.6673251302. The cubic root of 122161455 is about 496.1862580371.

The spelling of 122161455 in words is "one hundred twenty-two million, one hundred sixty-one thousand, four hundred fifty-five".