122140455 has 16 divisors (see below), whose sum is σ = 205710720. Its totient is φ = 61712928.

The previous prime is 122140439. The next prime is 122140477. The reversal of 122140455 is 554041221.

It is not a de Polignac number, because 122140455 - 2⁴ = 122140439 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213997 + ... + 214566.

It is an arithmetic number, because the mean of its divisors is an integer number (12856920).

Almost surely, 2^122140455 is an apocalyptic number.

122140455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

122140455 is a deficient number, since it is larger than the sum of its proper divisors (83570265).

122140455 is a wasteful number, since it uses less digits than its factorization.

122140455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428590.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 122140455 is about 11051.7172873721. The cubic root of 122140455 is about 496.1578243315.

Adding to 122140455 its reverse (554041221), we get a palindrome (676181676).

The spelling of 122140455 in words is "one hundred twenty-two million, one hundred forty thousand, four hundred fifty-five".