1206213253 has 12 divisors (see below), whose sum is σ = 1435779840. Its totient is φ = 1009851192.

The previous prime is 1206213251. The next prime is 1206213277. The reversal of 1206213253 is 3523126021.

It is not a de Polignac number, because 1206213253 - 2¹ = 1206213251 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 (1206213251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 284133 + ... + 288346.

It is an arithmetic number, because the mean of its divisors is an integer number (119648320).

Almost surely, 2^1206213253 is an apocalyptic number.

It is an amenable number.

1206213253 is a deficient number, since it is larger than the sum of its proper divisors (229566587).

1206213253 is an equidigital number, since it uses as much as digits as its factorization.

1206213253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572536 (or 572529 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1206213253 is about 34730.5809482076. The cubic root of 1206213253 is about 1064.4894591314.

Adding to 1206213253 its reverse (3523126021), we get a palindrome (4729339274).

The spelling of 1206213253 in words is "one billion, two hundred six million, two hundred thirteen thousand, two hundred fifty-three".