1213058263 has 8 divisors (see below), whose sum is σ = 1219525488. Its totient is φ = 1206601344.

The previous prime is 1213058237. The next prime is 1213058269. The reversal of 1213058263 is 3628503121.

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

It is a cyclic number.

It is not a de Polignac number, because 1213058263 - 2⁹ = 1213057751 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 (1213058269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364495 + ... + 367807.

It is an arithmetic number, because the mean of its divisors is an integer number (152440686).

Almost surely, 2^1213058263 is an apocalyptic number.

1213058263 is a deficient number, since it is larger than the sum of its proper divisors (6467225).

1213058263 is a wasteful number, since it uses less digits than its factorization.

1213058263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5153.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1213058263 is about 34828.9859599731. The cubic root of 1213058263 is about 1066.4992478235.

The spelling of 1213058263 in words is "one billion, two hundred thirteen million, fifty-eight thousand, two hundred sixty-three".