1201827245 has 4 divisors (see below), whose sum is σ = 1442192700. Its totient is φ = 961461792.

The previous prime is 1201827233. The next prime is 1201827259. The reversal of 1201827245 is 5427281021.

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 524318404 + 677508841 = 22898^2 + 26029^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201827245 - 2⁶ = 1201827181 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120182720 + ... + 120182729.

It is an arithmetic number, because the mean of its divisors is an integer number (360548175).

Almost surely, 2^1201827245 is an apocalyptic number.

It is an amenable number.

1201827245 is a deficient number, since it is larger than the sum of its proper divisors (240365455).

1201827245 is an equidigital number, since it uses as much as digits as its factorization.

1201827245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240365454.

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 1201827245 is about 34667.3801288762. The cubic root of 1201827245 is about 1063.1976671899.

The spelling of 1201827245 in words is "one billion, two hundred one million, eight hundred twenty-seven thousand, two hundred forty-five".