212274745 has 8 divisors (see below), whose sum is σ = 268136640. Its totient is φ = 160881840.

The previous prime is 212274739. The next prime is 212274761. The reversal of 212274745 is 547472212.

212274745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212274745 - 2¹⁵ = 212241977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212274745.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1117141 + ... + 1117330.

It is an arithmetic number, because the mean of its divisors is an integer number (33517080).

Almost surely, 2^212274745 is an apocalyptic number.

It is an amenable number.

212274745 is a deficient number, since it is larger than the sum of its proper divisors (55861895).

212274745 is a wasteful number, since it uses less digits than its factorization.

212274745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2234495.

The product of its digits is 31360, while the sum is 34.

The square root of 212274745 is about 14569.6515057842. The cubic root of 212274745 is about 596.5306680390.

It can be divided in two parts, 2122 and 74745, that added together give a palindrome (76867).

The spelling of 212274745 in words is "two hundred twelve million, two hundred seventy-four thousand, seven hundred forty-five".