1213830535 has 8 divisors (see below), whose sum is σ = 1458752256. Its totient is φ = 969627360.

The previous prime is 1213830533. The next prime is 1213830557. The reversal of 1213830535 is 5350383121.

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

It is not a de Polignac number, because 1213830535 - 2¹ = 1213830533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1213830497 and 1213830506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213830533) 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, 175911 + ... + 182680.

It is an arithmetic number, because the mean of its divisors is an integer number (182344032).

Almost surely, 2^1213830535 is an apocalyptic number.

1213830535 is a deficient number, since it is larger than the sum of its proper divisors (244921721).

1213830535 is an equidigital number, since it uses as much as digits as its factorization.

1213830535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359273.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 1213830535 is about 34840.0708236938. The cubic root of 1213830535 is about 1066.7255224143.

The spelling of 1213830535 in words is "one billion, two hundred thirteen million, eight hundred thirty thousand, five hundred thirty-five".