1206542361 has 16 divisors (see below), whose sum is σ = 1709179200. Its totient is φ = 755633088.

The previous prime is 1206542353. The next prime is 1206542369. The reversal of 1206542361 is 1632456021.

It is an interprime number because it is at equal distance from previous prime (1206542353) and next prime (1206542369).

It is not a de Polignac number, because 1206542361 - 2³ = 1206542353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1206542369) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184191 + ... + 190628.

It is an arithmetic number, because the mean of its divisors is an integer number (106823700).

Almost surely, 2^1206542361 is an apocalyptic number.

It is an amenable number.

1206542361 is a deficient number, since it is larger than the sum of its proper divisors (502636839).

1206542361 is a wasteful number, since it uses less digits than its factorization.

1206542361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374888.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 1206542361 is about 34735.3186396785. The cubic root of 1206542361 is about 1064.5862635008.

Adding to 1206542361 its reverse (1632456021), we get a palindrome (2838998382).

The spelling of 1206542361 in words is "one billion, two hundred six million, five hundred forty-two thousand, three hundred sixty-one".