1215355341 has 32 divisors (see below), whose sum is σ = 1704637440. Its totient is φ = 769305600.

The previous prime is 1215355331. The next prime is 1215355357. The reversal of 1215355341 is 1435535121.

It is not a de Polignac number, because 1215355341 - 2¹⁰ = 1215354317 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 1215355299 and 1215355308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215355301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1144951 + ... + 1146011.

It is an arithmetic number, because the mean of its divisors is an integer number (53269920).

Almost surely, 2^1215355341 is an apocalyptic number.

It is an amenable number.

1215355341 is a deficient number, since it is larger than the sum of its proper divisors (489282099).

1215355341 is a wasteful number, since it uses less digits than its factorization.

1215355341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1317.

The product of its digits is 9000, while the sum is 30.

The square root of 1215355341 is about 34861.9468905568. The cubic root of 1215355341 is about 1067.1720067239.

The spelling of 1215355341 in words is "one billion, two hundred fifteen million, three hundred fifty-five thousand, three hundred forty-one".