1215376133 has 8 divisors (see below), whose sum is σ = 1227096000. Its totient is φ = 1203673408.

The previous prime is 1215376117. The next prime is 1215376153. The reversal of 1215376133 is 3316735121.

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 1215376133 - 2⁴ = 1215376117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1215376133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215376103) 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, 172718 + ... + 179616.

It is an arithmetic number, because the mean of its divisors is an integer number (153387000).

Almost surely, 2^1215376133 is an apocalyptic number.

It is an amenable number.

1215376133 is a deficient number, since it is larger than the sum of its proper divisors (11719867).

1215376133 is a wasteful number, since it uses less digits than its factorization.

1215376133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8571.

The product of its digits is 11340, while the sum is 32.

The square root of 1215376133 is about 34862.2450940842. The cubic root of 1215376133 is about 1067.1780923278.

The spelling of 1215376133 in words is "one billion, two hundred fifteen million, three hundred seventy-six thousand, one hundred thirty-three".