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BaseRepresentation
bin100100001011111…
…1010001110010101
310010121210010210022
41020113322032111
54441320233344
6320253034525
742042522266
oct11027721625
93117703708
101214227349
11573443a85
1229a785a45
1316473622a
14b739496d
15718eb0ee
hex485fa395

1214227349 has 4 divisors (see below), whose sum is σ = 1214355840. Its totient is φ = 1214098860.

The previous prime is 1214227327. The next prime is 1214227369. The reversal of 1214227349 is 9437224121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1214227349 - 220 = 1213178773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214227369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48839 + ... + 69380.

It is an arithmetic number, because the mean of its divisors is an integer number (303588960).

Almost surely, 21214227349 is an apocalyptic number.

It is an amenable number.

1214227349 is a deficient number, since it is larger than the sum of its proper divisors (128491).

1214227349 is a wasteful number, since it uses less digits than its factorization.

1214227349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128490.

The product of its digits is 24192, while the sum is 35.

The square root of 1214227349 is about 34845.7651515934. The cubic root of 1214227349 is about 1066.8417510233.

The spelling of 1214227349 in words is "one billion, two hundred fourteen million, two hundred twenty-seven thousand, three hundred forty-nine".

Divisors: 1 10271 118219 1214227349