1220914 has 4 divisors (see below), whose sum is σ = 1831374. Its totient is φ = 610456.

The previous prime is 1220903. The next prime is 1220917. The reversal of 1220914 is 4190221.

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

It can be written as a sum of positive squares in only one way, i.e., 751689 + 469225 = 867^2 + 685^2 .

It is a super-3 number, since 3×1220914³ = 5459796753338735832, which contains 333 as substring.

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 1220891 and 1220900.

It is not an unprimeable number, because it can be changed into a prime (1220917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305227 + ... + 305230.

2^1220914 is an apocalyptic number.

1220914 is a deficient number, since it is larger than the sum of its proper divisors (610460).

1220914 is an equidigital number, since it uses as much as digits as its factorization.

1220914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610459.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1220914 is about 1104.9497726141. The cubic root of 1220914 is about 106.8796504024.

The spelling of 1220914 in words is "one million, two hundred twenty thousand, nine hundred fourteen".