1205229213 has 24 divisors (see below), whose sum is σ = 1819193376. Its totient is φ = 797331600.

The previous prime is 1205229199. The next prime is 1205229217. The reversal of 1205229213 is 3129225021.

It is a happy number.

1205229213 is a `hidden beast` number, since 120 + 522 + 9 + 2 + 13 = 666.

It is not a de Polignac number, because 1205229213 - 2¹⁴ = 1205212829 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205229217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12903 + ... + 50763.

It is an arithmetic number, because the mean of its divisors is an integer number (75799724).

Almost surely, 2^1205229213 is an apocalyptic number.

It is an amenable number.

1205229213 is a deficient number, since it is larger than the sum of its proper divisors (613964163).

1205229213 is an equidigital number, since it uses as much as digits as its factorization.

1205229213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38007 (or 37995 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1205229213 is about 34716.4112920676. The cubic root of 1205229213 is about 1064.1999069074.

The spelling of 1205229213 in words is "one billion, two hundred five million, two hundred twenty-nine thousand, two hundred thirteen".