1206526345 has 4 divisors (see below), whose sum is σ = 1447831620. Its totient is φ = 965221072.

The previous prime is 1206526339. The next prime is 1206526351. The reversal of 1206526345 is 5436256021.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1206526339) and next prime (1206526351).

It can be written as a sum of positive squares in 2 ways, for example, as 137170944 + 1069355401 = 11712^2 + 32701^2 .

It is a cyclic number.

It is not a de Polignac number, because 1206526345 - 2⁵ = 1206526313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1206526345.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120652630 + ... + 120652639.

It is an arithmetic number, because the mean of its divisors is an integer number (361957905).

Almost surely, 2^1206526345 is an apocalyptic number.

It is an amenable number.

1206526345 is a deficient number, since it is larger than the sum of its proper divisors (241305275).

1206526345 is an equidigital number, since it uses as much as digits as its factorization.

1206526345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241305274.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 1206526345 is about 34735.0880954691. The cubic root of 1206526345 is about 1064.5815529357.

The spelling of 1206526345 in words is "one billion, two hundred six million, five hundred twenty-six thousand, three hundred forty-five".