2214207745 has 4 divisors (see below), whose sum is σ = 2657049300. Its totient is φ = 1771366192.

The previous prime is 2214207727. The next prime is 2214207773. The reversal of 2214207745 is 5477024122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1206589696 + 1007618049 = 34736^2 + 31743^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2214207745 is a prime.

It is a super-4 number, since 4×2214207745⁴ (a number of 38 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2214207745.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221420770 + ... + 221420779.

It is an arithmetic number, because the mean of its divisors is an integer number (664262325).

Almost surely, 2^2214207745 is an apocalyptic number.

It is an amenable number.

2214207745 is a deficient number, since it is larger than the sum of its proper divisors (442841555).

2214207745 is an equidigital number, since it uses as much as digits as its factorization.

2214207745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442841554.

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

The square root of 2214207745 is about 47055.3689285293. The cubic root of 2214207745 is about 1303.3852097811.

The spelling of 2214207745 in words is "two billion, two hundred fourteen million, two hundred seven thousand, seven hundred forty-five".