1206134245 has 4 divisors (see below), whose sum is σ = 1447361100. Its totient is φ = 964907392.

The previous prime is 1206134243. The next prime is 1206134261. The reversal of 1206134245 is 5424316021.

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 410386564 + 795747681 = 20258^2 + 28209^2 .

It is a cyclic number.

It is not a de Polignac number, because 1206134245 - 2¹ = 1206134243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1206134243) 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, 120613420 + ... + 120613429.

It is an arithmetic number, because the mean of its divisors is an integer number (361840275).

Almost surely, 2^1206134245 is an apocalyptic number.

It is an amenable number.

1206134245 is a deficient number, since it is larger than the sum of its proper divisors (241226855).

1206134245 is an equidigital number, since it uses as much as digits as its factorization.

1206134245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241226854.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 1206134245 is about 34729.4434881989. The cubic root of 1206134245 is about 1064.4662169672.

The spelling of 1206134245 in words is "one billion, two hundred six million, one hundred thirty-four thousand, two hundred forty-five".