213063750 has 160 divisors (see below), whose sum is σ = 607305600. Its totient is φ = 55332000.

The previous prime is 213063749. The next prime is 213063761. The reversal of 213063750 is 57360312.

It is a happy number.

213063750 is a `hidden beast` number, since 21 + 3 + 0 + 637 + 5 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1991197 + ... + 1991303.

It is an arithmetic number, because the mean of its divisors is an integer number (3795660).

Almost surely, 2^213063750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213063750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303652800).

213063750 is an abundant number, since it is smaller than the sum of its proper divisors (394241850).

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

213063750 is a wasteful number, since it uses less digits than its factorization.

213063750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 176 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 213063750 is about 14596.7033949450. The cubic root of 213063750 is about 597.2688367758.

The spelling of 213063750 in words is "two hundred thirteen million, sixty-three thousand, seven hundred fifty".