1213760845 has 8 divisors (see below), whose sum is σ = 1588923360. Its totient is φ = 882735120.

The previous prime is 1213760837. The next prime is 1213760857. The reversal of 1213760845 is 5480673121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1213760845 - 2³ = 1213760837 is a prime.

It is a super-2 number, since 2×1213760845² = 2946430777710228050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11034135 + ... + 11034244.

It is an arithmetic number, because the mean of its divisors is an integer number (198615420).

Almost surely, 2^1213760845 is an apocalyptic number.

It is an amenable number.

1213760845 is a deficient number, since it is larger than the sum of its proper divisors (375162515).

1213760845 is a wasteful number, since it uses less digits than its factorization.

1213760845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22068395.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 1213760845 is about 34839.0706678579. The cubic root of 1213760845 is about 1066.7051072844.

The spelling of 1213760845 in words is "one billion, two hundred thirteen million, seven hundred sixty thousand, eight hundred forty-five".