122140340 has 36 divisors (see below), whose sum is σ = 298373796. Its totient is φ = 41876352.

The previous prime is 122140313. The next prime is 122140409. The reversal of 122140340 is 43041221.

It can be written as a sum of positive squares in 2 ways, for example, as 89832484 + 32307856 = 9478^2 + 5684^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61337 + ... + 63296.

It is an arithmetic number, because the mean of its divisors is an integer number (8288161).

Almost surely, 2^122140340 is an apocalyptic number.

122140340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122140340 is an abundant number, since it is smaller than the sum of its proper divisors (176233456).

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

122140340 is a wasteful number, since it uses less digits than its factorization.

122140340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124656 (or 124647 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 122140340 is about 11051.7120845596. The cubic root of 122140340 is about 496.1576686141.

Adding to 122140340 its reverse (43041221), we get a palindrome (165181561).

The spelling of 122140340 in words is "one hundred twenty-two million, one hundred forty thousand, three hundred forty".