122987700 has 288 divisors, whose sum is σ = 446221440. Its totient is φ = 28800000.

The previous prime is 122987681. The next prime is 122987713. The reversal of 122987700 is 7789221.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1217650 + ... + 1217750.

It is an arithmetic number, because the mean of its divisors is an integer number (1549380).

Almost surely, 2^122987700 is an apocalyptic number.

122987700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122987700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223110720).

122987700 is an abundant number, since it is smaller than the sum of its proper divisors (323233740).

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

122987700 is a wasteful number, since it uses less digits than its factorization.

122987700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 122987700 is about 11089.9819657202. The cubic root of 122987700 is about 497.3024054748.

The spelling of 122987700 in words is "one hundred twenty-two million, nine hundred eighty-seven thousand, seven hundred".