1206250513 has 12 divisors (see below), whose sum is σ = 1325684208. Its totient is φ = 1096832880.

The previous prime is 1206250499. The next prime is 1206250531. The reversal of 1206250513 is 3150526021.

It is not a de Polignac number, because 1206250513 - 2⁵ = 1206250481 is a prime.

It is a super-2 number, since 2×1206250513² = 2910080600225526338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1206250013) 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, 41943 + ... + 64588.

It is an arithmetic number, because the mean of its divisors is an integer number (110473684).

Almost surely, 2^1206250513 is an apocalyptic number.

1206250513 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1206250513 is a deficient number, since it is larger than the sum of its proper divisors (119433695).

1206250513 is a wasteful number, since it uses less digits than its factorization.

1206250513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106624 (or 106611 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1206250513 is about 34731.1173589333. The cubic root of 1206250513 is about 1064.5004197331.

Adding to 1206250513 its reverse (3150526021), we get a palindrome (4356776534).

The spelling of 1206250513 in words is "one billion, two hundred six million, two hundred fifty thousand, five hundred thirteen".