212050140 has 48 divisors (see below), whose sum is σ = 595260960. Its totient is φ = 56401920.

The previous prime is 212050057. The next prime is 212050151. The reversal of 212050140 is 41050212.

It is a Harshad number since it is a multiple of its sum of digits (15).

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 15 ways as a sum of consecutive naturals, for example, 20220 + ... + 28860.

It is an arithmetic number, because the mean of its divisors is an integer number (12401270).

Almost surely, 2^212050140 is an apocalyptic number.

212050140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212050140 is an abundant number, since it is smaller than the sum of its proper divisors (383210820).

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

212050140 is a wasteful number, since it uses less digits than its factorization.

212050140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9062 (or 9060 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 212050140 is about 14561.9414914358. The cubic root of 212050140 is about 596.3202001476.

The spelling of 212050140 in words is "two hundred twelve million, fifty thousand, one hundred forty".