122135340 has 48 divisors (see below), whose sum is σ = 345316608. Its totient is φ = 32251584.

The previous prime is 122135339. The next prime is 122135341. The reversal of 122135340 is 43531221.

It is an interprime number because it is at equal distance from previous prime (122135339) and next prime (122135341).

It is not an unprimeable number, because it can be changed into a prime (122135341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3702 + ... + 16061.

It is an arithmetic number, because the mean of its divisors is an integer number (7194096).

Almost surely, 2^122135340 is an apocalyptic number.

122135340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122135340 is an abundant number, since it is smaller than the sum of its proper divisors (223181268).

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

122135340 is a wasteful number, since it uses less digits than its factorization.

122135340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19878 (or 19876 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 122135340 is about 11051.4858729494. The cubic root of 122135340 is about 496.1508981996.

Adding to 122135340 its reverse (43531221), we get a palindrome (165666561).

The spelling of 122135340 in words is "one hundred twenty-two million, one hundred thirty-five thousand, three hundred forty".