216103750 has 20 divisors (see below), whose sum is σ = 405067212. Its totient is φ = 86441000.

The previous prime is 216103733. The next prime is 216103751. The reversal of 216103750 is 57301612.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216103751) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 85192 + ... + 87691.

Almost surely, 2^216103750 is an apocalyptic number.

216103750 is a deficient number, since it is larger than the sum of its proper divisors (188963462).

216103750 is an equidigital number, since it uses as much as digits as its factorization.

216103750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172905 (or 172890 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 216103750 is about 14700.4676796352. The cubic root of 216103750 is about 600.0960494382.

The spelling of 216103750 in words is "two hundred sixteen million, one hundred three thousand, seven hundred fifty".