122087740 has 24 divisors (see below), whose sum is σ = 256605552. Its totient is φ = 48792960.

The previous prime is 122087729. The next prime is 122087743. The reversal of 122087740 is 47780221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122087743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32647 + ... + 36193.

It is an arithmetic number, because the mean of its divisors is an integer number (10691898).

Almost surely, 2^122087740 is an apocalyptic number.

122087740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122087740 is an abundant number, since it is smaller than the sum of its proper divisors (134517812).

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

122087740 is a wasteful number, since it uses less digits than its factorization.

122087740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5277 (or 5275 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 122087740 is about 11049.3321065121. The cubic root of 122087740 is about 496.0864345986.

The spelling of 122087740 in words is "one hundred twenty-two million, eighty-seven thousand, seven hundred forty".